122555227218031 has 2 divisors, whose sum is σ = 122555227218032. Its totient is φ = 122555227218030.

The previous prime is 122555227218023. The next prime is 122555227218071. The reversal of 122555227218031 is 130812722555221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 122555227218031 - 2³ = 122555227218023 is a prime.

It is a super-2 number, since 2×122555227218031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (122555227218071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61277613609015 + 61277613609016.

It is an arithmetic number, because the mean of its divisors is an integer number (61277613609016).

Almost surely, 2^{122555227218031} is an apocalyptic number.

122555227218031 is a deficient number, since it is larger than the sum of its proper divisors (1).

122555227218031 is an equidigital number, since it uses as much as digits as its factorization.

122555227218031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 672000, while the sum is 46.

The spelling of 122555227218031 in words is "one hundred twenty-two trillion, five hundred fifty-five billion, two hundred twenty-seven million, two hundred eighteen thousand, thirty-one".