3112222131209 has 2 divisors, whose sum is σ = 3112222131210. Its totient is φ = 3112222131208.

The previous prime is 3112222131163. The next prime is 3112222131323. The reversal of 3112222131209 is 9021312222113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2735477829184 + 376744302025 = 1653928^2 + 613795^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3112222131209 is a prime.

It is not a weakly prime, because it can be changed into another prime (3112222130209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1556111065604 + 1556111065605.

It is an arithmetic number, because the mean of its divisors is an integer number (1556111065605).

Almost surely, 2^{3112222131209} is an apocalyptic number.

It is an amenable number.

3112222131209 is a deficient number, since it is larger than the sum of its proper divisors (1).

3112222131209 is an equidigital number, since it uses as much as digits as its factorization.

3112222131209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 29.

The spelling of 3112222131209 in words is "three trillion, one hundred twelve billion, two hundred twenty-two million, one hundred thirty-one thousand, two hundred nine".