312332224420 has 24 divisors (see below), whose sum is σ = 656006715000. Its totient is φ = 124912119552.

The previous prime is 312332224417. The next prime is 312332224469. The reversal of 312332224420 is 24422233213.

It can be written as a sum of positive squares in 4 ways, for example, as 24171542784 + 288160681636 = 155472^2 + 536806^2 .

It is a super-2 number, since 2×312332224420² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174545 + ... + 1415704.

It is an arithmetic number, because the mean of its divisors is an integer number (27333613125).

Almost surely, 2^312332224420 is an apocalyptic number.

It is an amenable number.

312332224420 is an abundant number, since it is smaller than the sum of its proper divisors (343674490580).

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

312332224420 is a wasteful number, since it uses less digits than its factorization.

312332224420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2596287 (or 2596285 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 28.

Adding to 312332224420 its reverse (24422233213), we get a palindrome (336754457633).

The spelling of 312332224420 in words is "three hundred twelve billion, three hundred thirty-two million, two hundred twenty-four thousand, four hundred twenty".