312332221002 has 16 divisors (see below), whose sum is σ = 626087373120. Its totient is φ = 103873585152.

The previous prime is 312332221001. The next prime is 312332221007. The reversal of 312332221002 is 200122233213.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 312332221002.

It is not an unprimeable number, because it can be changed into a prime (312332221001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59285943 + ... + 59291210.

It is an arithmetic number, because the mean of its divisors is an integer number (39130460820).

Almost surely, 2^312332221002 is an apocalyptic number.

312332221002 is an abundant number, since it is smaller than the sum of its proper divisors (313755152118).

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

312332221002 is a wasteful number, since it uses less digits than its factorization.

312332221002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118577597.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 312332221002 its reverse (200122233213), we get a palindrome (512454454215).

The spelling of 312332221002 in words is "three hundred twelve billion, three hundred thirty-two million, two hundred twenty-one thousand, two".