21332112331332 has 48 divisors (see below), whose sum is σ = 54309379203072. Its totient is φ = 6463150642080.

The previous prime is 21332112331303. The next prime is 21332112331337. The reversal of 21332112331332 is 23313321123312.

It is a super-2 number, since 2×21332112331332² (a number of 27 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 21332112331332.

It is not an unprimeable number, because it can be changed into a prime (21332112331337) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13311828 + ... + 14827979.

It is an arithmetic number, because the mean of its divisors is an integer number (1131445400064).

Almost surely, 2^{21332112331332} is an apocalyptic number.

21332112331332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

21332112331332 is an abundant number, since it is smaller than the sum of its proper divisors (32977266871740).

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

21332112331332 is a wasteful number, since it uses less digits than its factorization.

21332112331332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28145568 (or 28145566 counting only the distinct ones).

The product of its digits is 11664, while the sum is 30.

Adding to 21332112331332 its reverse (23313321123312), we get a palindrome (44645433454644).

The spelling of 21332112331332 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred twelve million, three hundred thirty-one thousand, three hundred thirty-two".