121632564910250 has 32 divisors (see below), whose sum is σ = 227707861142736. Its totient is φ = 48650526043200.

The previous prime is 121632564910249. The next prime is 121632564910261. The reversal of 121632564910250 is 52019465236121.

It can be written as a sum of positive squares in 8 ways, for example, as 1238410639921 + 120394154270329 = 1112839^2 + 10972427^2 .

It is a junction number, because it is equal to n+sod(n) for n = 121632564910195 and 121632564910204.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7620617 + ... + 17359116.

Almost surely, 2^{121632564910250} is an apocalyptic number.

121632564910250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121632564910250 is a deficient number, since it is larger than the sum of its proper divisors (106075296232486).

121632564910250 is a wasteful number, since it uses less digits than its factorization.

121632564910250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24999227 (or 24999217 counting only the distinct ones).

The product of its (nonzero) digits is 777600, while the sum is 47.

The spelling of 121632564910250 in words is "one hundred twenty-one trillion, six hundred thirty-two billion, five hundred sixty-four million, nine hundred ten thousand, two hundred fifty".