12133220232 has 32 divisors (see below), whose sum is σ = 34666344000. Its totient is φ = 3466634304.

The previous prime is 12133220221. The next prime is 12133220243. The reversal of 12133220232 is 23202233121.

It is a happy number.

12133220232 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12133220221) and next prime (12133220243).

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

It is a junction number, because it is equal to n+sod(n) for n = 12133220199 and 12133220208.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36110607 + ... + 36110942.

It is an arithmetic number, because the mean of its divisors is an integer number (1083323250).

Almost surely, 2^12133220232 is an apocalyptic number.

12133220232 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12133220232 is an abundant number, since it is smaller than the sum of its proper divisors (22533123768).

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

12133220232 is a wasteful number, since it uses less digits than its factorization.

12133220232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72221565 (or 72221561 counting only the distinct ones).

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

Adding to 12133220232 its reverse (23202233121), we get a palindrome (35335453353).

The spelling of 12133220232 in words is "twelve billion, one hundred thirty-three million, two hundred twenty thousand, two hundred thirty-two".