122502481921 has 2 divisors, whose sum is σ = 122502481922. Its totient is φ = 122502481920.

The previous prime is 122502481901. The next prime is 122502481999. The reversal of 122502481921 is 129184205221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 121257168400 + 1245313521 = 348220^2 + 35289^2 .

It is a cyclic number.

It is not a de Polignac number, because 122502481921 - 2⁵ = 122502481889 is a prime.

It is not a weakly prime, because it can be changed into another prime (122502481901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61251240960 + 61251240961.

It is an arithmetic number, because the mean of its divisors is an integer number (61251240961).

Almost surely, 2^122502481921 is an apocalyptic number.

It is an amenable number.

122502481921 is a deficient number, since it is larger than the sum of its proper divisors (1).

122502481921 is an equidigital number, since it uses as much as digits as its factorization.

122502481921 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 37.

The spelling of 122502481921 in words is "one hundred twenty-two billion, five hundred two million, four hundred eighty-one thousand, nine hundred twenty-one".