312220231120 has 80 divisors (see below), whose sum is σ = 829923810048. Its totient is φ = 107006929920.

The previous prime is 312220231097. The next prime is 312220231123. The reversal of 312220231120 is 21132022213.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312220231123) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1415332 + ... + 1620988.

Almost surely, 2^312220231120 is an apocalyptic number.

It is an amenable number.

312220231120 is an abundant number, since it is smaller than the sum of its proper divisors (517703578928).

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

312220231120 is a wasteful number, since it uses less digits than its factorization.

312220231120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 208388 (or 208382 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 312220231120 its reverse (21132022213), we get a palindrome (333352253333).

The spelling of 312220231120 in words is "three hundred twelve billion, two hundred twenty million, two hundred thirty-one thousand, one hundred twenty".