21033112232 has 32 divisors (see below), whose sum is σ = 45553000320. Its totient is φ = 8998122240.

The previous prime is 21033112231. The next prime is 21033112267. The reversal of 21033112232 is 23221133012.

It is not an unprimeable number, because it can be changed into a prime (21033112231) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7028288 + ... + 7031279.

It is an arithmetic number, because the mean of its divisors is an integer number (1423531260).

Almost surely, 2^21033112232 is an apocalyptic number.

21033112232 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21033112232 is an abundant number, since it is smaller than the sum of its proper divisors (24519888088).

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

21033112232 is a wasteful number, since it uses less digits than its factorization.

21033112232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14059601 (or 14059597 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 21033112232 its reverse (23221133012), we get a palindrome (44254245244).

The spelling of 21033112232 in words is "twenty-one billion, thirty-three million, one hundred twelve thousand, two hundred thirty-two".