二千百兆 the maximum number of sats to ever exist. 21e14.

In Japanese 10^8 is 一億 (oku) so 1bitcoin is 1 oku sats.

But with 21m Bitcoin, that means 21x10^14 sats. 10^12 is 1兆 (chou) in Japanese. So we’d have 2100兆 sats ever created. You can write 2100 with characters for “two thousand hundred” 二千百, so altogether it’s 二千百兆 (ni sen hyaku chou) sats