122564225291 has 2 divisors, whose sum is σ = 122564225292. Its totient is φ = 122564225290.

The previous prime is 122564225177. The next prime is 122564225299. The reversal of 122564225291 is 192522465221.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122564225291 is a prime.

It is not a weakly prime, because it can be changed into another prime (122564225299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61282112645 + 61282112646.

It is an arithmetic number, because the mean of its divisors is an integer number (61282112646).

Almost surely, 2^122564225291 is an apocalyptic number.

122564225291 is a deficient number, since it is larger than the sum of its proper divisors (1).

122564225291 is an equidigital number, since it uses as much as digits as its factorization.

122564225291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 41.

The spelling of 122564225291 in words is "one hundred twenty-two billion, five hundred sixty-four million, two hundred twenty-five thousand, two hundred ninety-one".