122517925997 has 2 divisors, whose sum is σ = 122517925998. Its totient is φ = 122517925996.

The previous prime is 122517925979. The next prime is 122517926021. The reversal of 122517925997 is 799529715221.

Together with previous prime (122517925979) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 117931114921 + 4586811076 = 343411^2 + 67726^2 .

It is a cyclic number.

It is not a de Polignac number, because 122517925997 - 2³² = 118222958701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122517925927) 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, 61258962998 + 61258962999.

It is an arithmetic number, because the mean of its divisors is an integer number (61258962999).

Almost surely, 2^122517925997 is an apocalyptic number.

It is an amenable number.

122517925997 is a deficient number, since it is larger than the sum of its proper divisors (1).

122517925997 is an equidigital number, since it uses as much as digits as its factorization.

122517925997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7144200, while the sum is 59.

The spelling of 122517925997 in words is "one hundred twenty-two billion, five hundred seventeen million, nine hundred twenty-five thousand, nine hundred ninety-seven".