122312999 has 2 divisors, whose sum is σ = 122313000. Its totient is φ = 122312998.

The previous prime is 122312969. The next prime is 122313017. The reversal of 122312999 is 999213221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122312999 - 2²⁴ = 105535783 is a prime.

It is a Chen prime.

It is equal to p_6965840 and since 122312999 and 6965840 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122312969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61156499 + 61156500.

It is an arithmetic number, because the mean of its divisors is an integer number (61156500).

Almost surely, 2^122312999 is an apocalyptic number.

122312999 is a deficient number, since it is larger than the sum of its proper divisors (1).

122312999 is an equidigital number, since it uses as much as digits as its factorization.

122312999 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17496, while the sum is 38.

The square root of 122312999 is about 11059.5207400683. The cubic root of 122312999 is about 496.3913499471.

The spelling of 122312999 in words is "one hundred twenty-two million, three hundred twelve thousand, nine hundred ninety-nine".