312211254330021 has 32 divisors (see below), whose sum is σ = 421468401321216. Its totient is φ = 205557955200000.

The previous prime is 312211254330007. The next prime is 312211254330023. The reversal of 312211254330021 is 120033452112213.

It is not a de Polignac number, because 312211254330021 - 2¹⁰ = 312211254328997 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312211254330023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5483037411 + ... + 5483094351.

It is an arithmetic number, because the mean of its divisors is an integer number (13170887541288).

Almost surely, 2^{312211254330021} is an apocalyptic number.

It is an amenable number.

312211254330021 is a deficient number, since it is larger than the sum of its proper divisors (109257146991195).

312211254330021 is a wasteful number, since it uses less digits than its factorization.

312211254330021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102573.

The product of its (nonzero) digits is 8640, while the sum is 30.

The spelling of 312211254330021 in words is "three hundred twelve trillion, two hundred eleven billion, two hundred fifty-four million, three hundred thirty thousand, twenty-one".