122621745793 has 2 divisors, whose sum is σ = 122621745794. Its totient is φ = 122621745792.

The previous prime is 122621745709. The next prime is 122621745811. The reversal of 122621745793 is 397547126221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 80470370929 + 42151374864 = 283673^2 + 205308^2 .

It is a cyclic number.

It is not a de Polignac number, because 122621745793 - 2²⁵ = 122588191361 is a prime.

It is a super-2 number, since 2×122621745793² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (122621745593) 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, 61310872896 + 61310872897.

It is an arithmetic number, because the mean of its divisors is an integer number (61310872897).

Almost surely, 2^122621745793 is an apocalyptic number.

It is an amenable number.

122621745793 is a deficient number, since it is larger than the sum of its proper divisors (1).

122621745793 is an equidigital number, since it uses as much as digits as its factorization.

122621745793 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1270080, while the sum is 49.

The spelling of 122621745793 in words is "one hundred twenty-two billion, six hundred twenty-one million, seven hundred forty-five thousand, seven hundred ninety-three".