122556663001 has 2 divisors, whose sum is σ = 122556663002. Its totient is φ = 122556663000.

The previous prime is 122556662957. The next prime is 122556663013. The reversal of 122556663001 is 100366655221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 78540623001 + 44016040000 = 280251^2 + 209800^2 .

It is a cyclic number.

It is not a de Polignac number, because 122556663001 - 2¹⁵ = 122556630233 is a prime.

It is not a weakly prime, because it can be changed into another prime (122566663001) 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, 61278331500 + 61278331501.

It is an arithmetic number, because the mean of its divisors is an integer number (61278331501).

Almost surely, 2^122556663001 is an apocalyptic number.

It is an amenable number.

122556663001 is a deficient number, since it is larger than the sum of its proper divisors (1).

122556663001 is an equidigital number, since it uses as much as digits as its factorization.

122556663001 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 122556663001 in words is "one hundred twenty-two billion, five hundred fifty-six million, six hundred sixty-three thousand, one".