Anyone that believes this is an idiot.
There is 12,577,500 bitcoin in circulation right now.
So with roughly that much bitcoin multiplied to $1,000,000 USD would would make the total value of all the bitcoin $12,577,500,000,000.
Thats twelve trillion ,five hundred seventy seven billion ,five hundred million.
There was approximately $1.27 trillion in circulation as of March 26, 2014, of which $1.22 trillion was in Federal Reserve notes.
"source -
http://www.federalreserve.gov/faqs/currency_12773.htm"