122663335997 has 2 divisors, whose sum is σ = 122663335998. Its totient is φ = 122663335996.

The previous prime is 122663335981. The next prime is 122663336023. The reversal of 122663335997 is 799533366221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64521588121 + 58141747876 = 254011^2 + 241126^2 .

It is a cyclic number.

It is not a de Polignac number, because 122663335997 - 2⁴ = 122663335981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122663335897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61331667998 + 61331667999.

It is an arithmetic number, because the mean of its divisors is an integer number (61331667999).

Almost surely, 2^122663335997 is an apocalyptic number.

It is an amenable number.

122663335997 is a deficient number, since it is larger than the sum of its proper divisors (1).

122663335997 is an equidigital number, since it uses as much as digits as its factorization.

122663335997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11022480, while the sum is 56.

The spelling of 122663335997 in words is "one hundred twenty-two billion, six hundred sixty-three million, three hundred thirty-five thousand, nine hundred ninety-seven".