220131012120 has 64 divisors (see below), whose sum is σ = 661137880320. Its totient is φ = 58635394944.

The previous prime is 220131012043. The next prime is 220131012149. The reversal of 220131012120 is 21210131022.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 220131012120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 927622 + ... + 1140501.

It is an arithmetic number, because the mean of its divisors is an integer number (10330279380).

Almost surely, 2^220131012120 is an apocalyptic number.

220131012120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220131012120 is an abundant number, since it is smaller than the sum of its proper divisors (441006868200).

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

220131012120 is a wasteful number, since it uses less digits than its factorization.

220131012120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2069024 (or 2069020 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 220131012120 its reverse (21210131022), we get a palindrome (241341143142).

The spelling of 220131012120 in words is "two hundred twenty billion, one hundred thirty-one million, twelve thousand, one hundred twenty".