312220220232 has 32 divisors (see below), whose sum is σ = 814487532480. Its totient is φ = 99548475840.

The previous prime is 312220220227. The next prime is 312220220251. The reversal of 312220220232 is 232022022213.

It is a junction number, because it is equal to n+sod(n) for n = 312220220199 and 312220220208.

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, 282807619 + ... + 282808722.

It is an arithmetic number, because the mean of its divisors is an integer number (25452735390).

Almost surely, 2^312220220232 is an apocalyptic number.

It is an amenable number.

312220220232 is an abundant number, since it is smaller than the sum of its proper divisors (502267312248).

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

312220220232 is a wasteful number, since it uses less digits than its factorization.

312220220232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565616373 (or 565616369 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 21.

Adding to 312220220232 its reverse (232022022213), we get a palindrome (544242242445).

The spelling of 312220220232 in words is "three hundred twelve billion, two hundred twenty million, two hundred twenty thousand, two hundred thirty-two".