312220112232402 has 96 divisors (see below), whose sum is σ = 756202103616960. Its totient is φ = 92281529612160.

The previous prime is 312220112232377. The next prime is 312220112232403. The reversal of 312220112232402 is 204232211022213.

312220112232402 is a `hidden beast` number, since 3 + 1 + 2 + 2 + 20 + 1 + 1 + 2 + 232 + 402 = 666.

It is not an unprimeable number, because it can be changed into a prime (312220112232403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 19824913 + ... + 31897764.

It is an arithmetic number, because the mean of its divisors is an integer number (7877105246010).

Almost surely, 2^{312220112232402} is an apocalyptic number.

312220112232402 is an abundant number, since it is smaller than the sum of its proper divisors (443981991384558).

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

312220112232402 is a wasteful number, since it uses less digits than its factorization.

312220112232402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51723448 (or 51723445 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 312220112232402 its reverse (204232211022213), we get a palindrome (516452323254615).

The spelling of 312220112232402 in words is "three hundred twelve trillion, two hundred twenty billion, one hundred twelve million, two hundred thirty-two thousand, four hundred two".