122913211 has 2 divisors, whose sum is σ = 122913212. Its totient is φ = 122913210.

The previous prime is 122913139. The next prime is 122913227. The reversal of 122913211 is 112319221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122913211 is a prime.

It is not a weakly prime, because it can be changed into another prime (122913811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61456605 + 61456606.

It is an arithmetic number, because the mean of its divisors is an integer number (61456606).

Almost surely, 2^122913211 is an apocalyptic number.

122913211 is a deficient number, since it is larger than the sum of its proper divisors (1).

122913211 is an equidigital number, since it uses as much as digits as its factorization.

122913211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 216, while the sum is 22.

The square root of 122913211 is about 11086.6230656589. The cubic root of 122913211 is about 497.2019861103.

The spelling of 122913211 in words is "one hundred twenty-two million, nine hundred thirteen thousand, two hundred eleven".