122330121257 has 2 divisors, whose sum is σ = 122330121258. Its totient is φ = 122330121256.

The previous prime is 122330121209. The next prime is 122330121269. The reversal of 122330121257 is 752121033221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 74395835536 + 47934285721 = 272756^2 + 218939^2 .

It is a cyclic number.

It is not a de Polignac number, because 122330121257 - 2²² = 122325926953 is a prime.

It is not a weakly prime, because it can be changed into another prime (122330121157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61165060628 + 61165060629.

It is an arithmetic number, because the mean of its divisors is an integer number (61165060629).

Almost surely, 2^122330121257 is an apocalyptic number.

It is an amenable number.

122330121257 is a deficient number, since it is larger than the sum of its proper divisors (1).

122330121257 is an equidigital number, since it uses as much as digits as its factorization.

122330121257 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5040, while the sum is 29.

Adding to 122330121257 its reverse (752121033221), we get a palindrome (874451154478).

The spelling of 122330121257 in words is "one hundred twenty-two billion, three hundred thirty million, one hundred twenty-one thousand, two hundred fifty-seven".