I believe it is 21 million and each one divisible by 100million. I am not sure how keeping everything in a BTC playground works since it can not increase the supply via loans and Interest. Only the value can change.
The divisible by 100 million is news to me. Unless you mean the decimal places in which case yes I know? Or did they change the code to allow for them to split some time in the future? I thought the code was already written to reverse-split the coins, down from 21 million to 10.5 million.