312011220401012 has 24 divisors (see below), whose sum is σ = 614872551643392. Its totient is φ = 137248337419200.

The previous prime is 312011220400991. The next prime is 312011220401029. The reversal of 312011220401012 is 210104022110213.

It is a super-2 number, since 2×312011220401012² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

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, 114373613153 + ... + 114373615880.

It is an arithmetic number, because the mean of its divisors is an integer number (25619689651808).

Almost surely, 2^{312011220401012} is an apocalyptic number.

It is an amenable number.

312011220401012 is a deficient number, since it is larger than the sum of its proper divisors (302861331242380).

312011220401012 is a wasteful number, since it uses less digits than its factorization.

312011220401012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 228747229079 (or 228747229077 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

Adding to 312011220401012 its reverse (210104022110213), we get a palindrome (522115242511225).

The spelling of 312011220401012 in words is "three hundred twelve trillion, eleven billion, two hundred twenty million, four hundred one thousand, twelve".