12213331032 has 32 divisors (see below), whose sum is σ = 34895232000. Its totient is φ = 3489523104.

The previous prime is 12213331021. The next prime is 12213331057. The reversal of 12213331032 is 23013331221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

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, 36349032 + ... + 36349367.

It is an arithmetic number, because the mean of its divisors is an integer number (1090476000).

Almost surely, 2^12213331032 is an apocalyptic number.

12213331032 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12213331032 is an abundant number, since it is smaller than the sum of its proper divisors (22681900968).

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

12213331032 is a wasteful number, since it uses less digits than its factorization.

12213331032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72698415 (or 72698411 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 12213331032 its reverse (23013331221), we get a palindrome (35226662253).

The spelling of 12213331032 in words is "twelve billion, two hundred thirteen million, three hundred thirty-one thousand, thirty-two".