Regardless of all the crazy headlines you'll see and are going to see, there's one thing that the IPO is really all about: the numbers. Here are the numbers you need to know, plus a few extra ones about Facebook in general (see also: Facebook's IPO in pictures).
$1 is the salary Facebook co-founder and CEO Mark Zuckerberg will be paid starting in 2013.
12 percent of Facebook's revenue comes from Zynga, including both payments revenue and advertising that is displayed alongside Zynga games.
15 companies have been acquired by Facebook so far.
21 mentions of competing and/or partnering companies with Facebook. More specifically, Google is mentioned 14 times, Google+ is mentioned twice, Microsoft is mentioned five times, Twitter is mentioned twice, while both Friendster and MySpace go unmentioned.
35 mentions of the word "privacy."
39.4 percent year-over-year growth in Facebook's net income (read: profit) from 2010 to 2011.
46.8 percent year-over-year growth in Facebook's revenue from 2010 to 2011.
56 percent of Facebook's revenue comes from advertisers and Platform developers based in the U.S. This number is down from 62 percent in 2010.
57.1 percent of Class B shares (voting control) owned by Mark Zuckerberg.
70 different languages are supported by Facebook.
$29.73 is the share price of Facebook's Class B common stock as of December 31, 2011. A single Class B share can be converted into a Class A share, but it has 10 times the voting power.
3,200 employees work for Facebook around the world as of December 31, 2011.
$200,000 is the amount Facebook paid for the facebook.com domain when it finally dropped the "The" from its name in 2005.
$0.7 million is the amount in advertisements GMG Lifestyle Entertainment purchased from Facebook in 2011. The company also purchased $0.9 million worth of ads in 2010.
$783,529 spent on Zuckerberg's "comprehensive security program" in 2011, which included the procurement, installation, and maintenance of security measures for his personal residence, annual costs of security personnel, and the use of private aircraft.
1.9 million is the number in square feet Facebook leased for its office facilities around the world as of December 31, 2011.
$3.8 million is the amount in advertisements Netflix purchased from Facebook in 2011. The company also purchased $1.9 million worth of ads in 2009 and $1.6 million worth of ads in 2010.
$4.2 million is the amount in advertisements The Washington Post Company and its related companies purchased from Facebook in 2011. They also purchased $0.6 million worth of ads in 2009 and $4.8 million worth of ads in 2010.
$8.5 million is the amount Facebook is thought to have paid the American Farm Bureau Federation (FB) for the fb.com domain name on November 15, 2010, making the acquisition one of the ten highest domain sales in history.
37 million Facebook Pages with 10 or more Likes as of December 31, 2011.
$65 million is the amount Facebook agreed to settle with ConnectU and the Winklevoss brothers in February 2008. That legal battle is still raging.
$68 million spent on acquisitions by Facebook in 2011. These acquisitions, and in fact all of Facebook's acquisitions, were not material to its consolidated financial statements individually or in the aggregate.
161 million monthly active U.S. Facebook users as of December 31, 2011.
$240 million is the amount Microsoft invested in Facebook on October 24, 2007, to purchase a 1.6 percent share of the social networking giant at a total implied value of around $15 billion.
250 million photos uploaded to Facebook daily in the three months ended December 31, 2011.
$388 million in research and development expenses spent by Facebook in 2011, or about 10.5 percent of its revenue last year. The company also spent $87 million in 2009 and $144 million in 2010.
533,801,850 shares owned by Facebook co-founder and CEO Mark Zuckerberg, or a 28.4 percent stake in the company. Good thing he didn't sell it, like he wanted to in 2004.
$557 million Facebook's revenue from payments and other fees in 2011, or about 15.01 percent of its total revenue.
845 million monthly active Facebook users as of December 31, 2011, an increase of 39 percent as compared to 608 million monthly active users as of December 31, 2010. It was over 800 million on September 22, 2011.