312013222223012 has 12 divisors (see below), whose sum is σ = 546314662202316. Its totient is φ = 155923318736640.

The previous prime is 312013222222979. The next prime is 312013222223033. The reversal of 312013222223012 is 210322222310213.

It can be written as a sum of positive squares in 2 ways, for example, as 7756926835876 + 304256295387136 = 2785126^2 + 17442944^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20823085289 + ... + 20823100272.

It is an arithmetic number, because the mean of its divisors is an integer number (45526221850193).

Almost surely, 2^{312013222223012} is an apocalyptic number.

It is an amenable number.

312013222223012 is a deficient number, since it is larger than the sum of its proper divisors (234301439979304).

312013222223012 is a wasteful number, since it uses less digits than its factorization.

312013222223012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41646187438 (or 41646187436 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 312013222223012 its reverse (210322222310213), we get a palindrome (522335444533225).

The spelling of 312013222223012 in words is "three hundred twelve trillion, thirteen billion, two hundred twenty-two million, two hundred twenty-three thousand, twelve".