312220231122 has 16 divisors (see below), whose sum is σ = 625522688352. Its totient is φ = 103893039360.

The previous prime is 312220231097. The next prime is 312220231123. The reversal of 312220231122 is 221132022213.

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

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45089004 + ... + 45095927.

It is an arithmetic number, because the mean of its divisors is an integer number (39095168022).

Almost surely, 2^312220231122 is an apocalyptic number.

312220231122 is an abundant number, since it is smaller than the sum of its proper divisors (313302457230).

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

312220231122 is a wasteful number, since it uses less digits than its factorization.

312220231122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90185513.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 312220231122 its reverse (221132022213), we get a palindrome (533352253335).

The spelling of 312220231122 in words is "three hundred twelve billion, two hundred twenty million, two hundred thirty-one thousand, one hundred twenty-two".