122635372051 has 2 divisors, whose sum is σ = 122635372052. Its totient is φ = 122635372050.

The previous prime is 122635372003. The next prime is 122635372087. The reversal of 122635372051 is 150273536221.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 122635372051 - 2⁹ = 122635371539 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122635372051.

It is not a weakly prime, because it can be changed into another prime (122635372001) 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, 61317686025 + 61317686026.

It is an arithmetic number, because the mean of its divisors is an integer number (61317686026).

Almost surely, 2^122635372051 is an apocalyptic number.

122635372051 is a deficient number, since it is larger than the sum of its proper divisors (1).

122635372051 is an equidigital number, since it uses as much as digits as its factorization.

122635372051 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 75600, while the sum is 37.

The spelling of 122635372051 in words is "one hundred twenty-two billion, six hundred thirty-five million, three hundred seventy-two thousand, fifty-one".