The math says there are 21 million Bitcoins that can ever exist. But Bitcoin is divisible into 100 million pieces, so actually there is 100 million Bitcoins?
I'm not a genius with fractions so can someone help me out and tell me what people will be trading in 10 years if not whole coins anymore?
The 100,000,000 pieces are called Satoshi.
So there are 21,000,000 Bitcoins times 100,000,000 Satoshis for a total of 2,100,000,000,000,000 Satoshi. (2.1 Quadrillion units total)