21100023212032 has 48 divisors (see below), whose sum is σ = 42196988171520. Its totient is φ = 10548200042496.

The previous prime is 21100023211963. The next prime is 21100023212057. The reversal of 21100023212032 is 23021232000112.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11084833 + ... + 12848095.

It is an arithmetic number, because the mean of its divisors is an integer number (879103920240).

Almost surely, 2^{21100023212032} is an apocalyptic number.

It is an amenable number.

21100023212032 is a deficient number, since it is larger than the sum of its proper divisors (21096964959488).

21100023212032 is an equidigital number, since it uses as much as digits as its factorization.

21100023212032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1769128 (or 1769108 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 21100023212032 its reverse (23021232000112), we get a palindrome (44121255212144).

The spelling of 21100023212032 in words is "twenty-one trillion, one hundred billion, twenty-three million, two hundred twelve thousand, thirty-two".