312010022209 has 2 divisors, whose sum is σ = 312010022210. Its totient is φ = 312010022208.

The previous prime is 312010022183. The next prime is 312010022249. The reversal of 312010022209 is 902220010213.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 283632935184 + 28377087025 = 532572^2 + 168455^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312010022209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 312010022209.

It is not a weakly prime, because it can be changed into another prime (312010022249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156005011104 + 156005011105.

It is an arithmetic number, because the mean of its divisors is an integer number (156005011105).

Almost surely, 2^312010022209 is an apocalyptic number.

It is an amenable number.

312010022209 is a deficient number, since it is larger than the sum of its proper divisors (1).

312010022209 is an equidigital number, since it uses as much as digits as its factorization.

312010022209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

The spelling of 312010022209 in words is "three hundred twelve billion, ten million, twenty-two thousand, two hundred nine".