122057321 has 2 divisors, whose sum is σ = 122057322. Its totient is φ = 122057320.

The previous prime is 122057269. The next prime is 122057417. The reversal of 122057321 is 123750221.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 85285225 + 36772096 = 9235^2 + 6064^2 .

It is a cyclic number.

It is not a de Polignac number, because 122057321 - 2²⁶ = 54948457 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (122017321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61028660 + 61028661.

It is an arithmetic number, because the mean of its divisors is an integer number (61028661).

Almost surely, 2^122057321 is an apocalyptic number.

It is an amenable number.

122057321 is a deficient number, since it is larger than the sum of its proper divisors (1).

122057321 is an equidigital number, since it uses as much as digits as its factorization.

122057321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 840, while the sum is 23.

The square root of 122057321 is about 11047.9555122203. The cubic root of 122057321 is about 496.0452300607.

The spelling of 122057321 in words is "one hundred twenty-two million, fifty-seven thousand, three hundred twenty-one".