21020011112232 has 192 divisors, whose sum is σ = 69218725867200. Its totient is φ = 5679485061120.

The previous prime is 21020011112227. The next prime is 21020011112293. The reversal of 21020011112232 is 23221111002012.

21020011112232 is a `hidden beast` number, since 210 + 200 + 1 + 11 + 12 + 232 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 40828423 + ... + 41340054.

It is an arithmetic number, because the mean of its divisors is an integer number (360514197225).

Almost surely, 2^{21020011112232} is an apocalyptic number.

21020011112232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21020011112232 is an abundant number, since it is smaller than the sum of its proper divisors (48198714754968).

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

21020011112232 is a wasteful number, since it uses less digits than its factorization.

21020011112232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82168536 (or 82168529 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 21020011112232 its reverse (23221111002012), we get a palindrome (44241122114244).

The spelling of 21020011112232 in words is "twenty-one trillion, twenty billion, eleven million, one hundred twelve thousand, two hundred thirty-two".