3122671021 has 2 divisors, whose sum is σ = 3122671022. Its totient is φ = 3122671020.

The previous prime is 3122670979. The next prime is 3122671049. The reversal of 3122671021 is 1201762213.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1700325225 + 1422345796 = 41235^2 + 37714^2 .

It is a cyclic number.

It is not a de Polignac number, because 3122671021 - 2¹¹ = 3122668973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3122671121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1561335510 + 1561335511.

It is an arithmetic number, because the mean of its divisors is an integer number (1561335511).

Almost surely, 2^3122671021 is an apocalyptic number.

It is an amenable number.

3122671021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3122671021 is an equidigital number, since it uses as much as digits as its factorization.

3122671021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 3122671021 is about 55880.8645333982. The cubic root of 3122671021 is about 1461.6455801265.

The spelling of 3122671021 in words is "three billion, one hundred twenty-two million, six hundred seventy-one thousand, twenty-one".