122942899 has 2 divisors, whose sum is σ = 122942900. Its totient is φ = 122942898.

The previous prime is 122942857. The next prime is 122942927. The reversal of 122942899 is 998249221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122942899 - 2¹⁵ = 122910131 is a prime.

It is a super-2 number, since 2×122942899² = 30229912829048402, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122948899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61471449 + 61471450.

It is an arithmetic number, because the mean of its divisors is an integer number (61471450).

Almost surely, 2^122942899 is an apocalyptic number.

122942899 is a deficient number, since it is larger than the sum of its proper divisors (1).

122942899 is an equidigital number, since it uses as much as digits as its factorization.

122942899 is an evil number, because the sum of its binary digits is even.

The product of its digits is 186624, while the sum is 46.

The square root of 122942899 is about 11087.9618956777. The cubic root of 122942899 is about 497.2420136608.

The spelling of 122942899 in words is "one hundred twenty-two million, nine hundred forty-two thousand, eight hundred ninety-nine".