21633286936122 has 64 divisors (see below), whose sum is σ = 49377758630400. Its totient is φ = 7015562953920.

The previous prime is 21633286936043. The next prime is 21633286936199. The reversal of 21633286936122 is 22163968233612.

21633286936122 is a `hidden beast` number, since 2 + 16 + 3 + 3 + 2 + 8 + 6 + 9 + 3 + 612 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 21728872 + ... + 22702652.

It is an arithmetic number, because the mean of its divisors is an integer number (771527478600).

Almost surely, 2^{21633286936122} is an apocalyptic number.

21633286936122 is an abundant number, since it is smaller than the sum of its proper divisors (27744471694278).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21633286936122 is a wasteful number, since it uses less digits than its factorization.

21633286936122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 984948 (or 984942 counting only the distinct ones).

The product of its digits is 6718464, while the sum is 54.

The spelling of 21633286936122 in words is "twenty-one trillion, six hundred thirty-three billion, two hundred eighty-six million, nine hundred thirty-six thousand, one hundred twenty-two".