21013220113132 has 24 divisors (see below), whose sum is σ = 39605599438832. Its totient is φ = 9697488091200.

The previous prime is 21013220113063. The next prime is 21013220113163. The reversal of 21013220113132 is 23131102231012.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18638619 + ... + 19733842.

Almost surely, 2^{21013220113132} is an apocalyptic number.

It is an amenable number.

21013220113132 is a deficient number, since it is larger than the sum of its proper divisors (18592379325700).

21013220113132 is a wasteful number, since it uses less digits than its factorization.

21013220113132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38383009 (or 38383007 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 21013220113132 its reverse (23131102231012), we get a palindrome (44144322344144).

The spelling of 21013220113132 in words is "twenty-one trillion, thirteen billion, two hundred twenty million, one hundred thirteen thousand, one hundred thirty-two".