122557166215 has 32 divisors (see below), whose sum is σ = 161979181056. Its totient is φ = 88280626560.

The previous prime is 122557166167. The next prime is 122557166227. The reversal of 122557166215 is 512661755221.

It is not a de Polignac number, because 122557166215 - 2⁷ = 122557166087 is a prime.

It is a super-2 number, since 2×122557166215² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2390844 + ... + 2441566.

It is an arithmetic number, because the mean of its divisors is an integer number (5061849408).

Almost surely, 2^122557166215 is an apocalyptic number.

122557166215 is a deficient number, since it is larger than the sum of its proper divisors (39422014841).

122557166215 is a wasteful number, since it uses less digits than its factorization.

122557166215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51159.

The product of its digits is 252000, while the sum is 43.

The spelling of 122557166215 in words is "one hundred twenty-two billion, five hundred fifty-seven million, one hundred sixty-six thousand, two hundred fifteen".