12220133232 has 20 divisors (see below), whose sum is σ = 31568677640. Its totient is φ = 4073377728.

The previous prime is 12220133213. The next prime is 12220133281. The reversal of 12220133232 is 23233102221.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12220133199 and 12220133208.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 127293007 + ... + 127293102.

It is an arithmetic number, because the mean of its divisors is an integer number (1578433882).

Almost surely, 2^12220133232 is an apocalyptic number.

12220133232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12220133232 is an abundant number, since it is smaller than the sum of its proper divisors (19348544408).

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

12220133232 is a wasteful number, since it uses less digits than its factorization.

12220133232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254586120 (or 254586114 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12220133232 its reverse (23233102221), we get a palindrome (35453235453).

The spelling of 12220133232 in words is "twelve billion, two hundred twenty million, one hundred thirty-three thousand, two hundred thirty-two".