21023211112032 has 96 divisors (see below), whose sum is σ = 57107278216800. Its totient is φ = 6763911856128.

The previous prime is 21023211112021. The next prime is 21023211112109. The reversal of 21023211112032 is 23021111232012.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×21023211112032² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

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, 7441008 + ... + 9869904.

It is an arithmetic number, because the mean of its divisors is an integer number (594867481425).

Almost surely, 2^{21023211112032} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21023211112032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28553639108400).

21023211112032 is an abundant number, since it is smaller than the sum of its proper divisors (36084067104768).

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

21023211112032 is a wasteful number, since it uses less digits than its factorization.

21023211112032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2432048 (or 2432040 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 21023211112032 its reverse (23021111232012), we get a palindrome (44044322344044).

The spelling of 21023211112032 in words is "twenty-one trillion, twenty-three billion, two hundred eleven million, one hundred twelve thousand, thirty-two".