122156512755 has 16 divisors (see below), whose sum is σ = 205737285120. Its totient is φ = 61721185248.

The previous prime is 122156512729. The next prime is 122156512759. The reversal of 122156512755 is 557215651221.

It is not a de Polignac number, because 122156512755 - 2¹⁰ = 122156511731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122156512759) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 214309387 + ... + 214309956.

It is an arithmetic number, because the mean of its divisors is an integer number (12858580320).

Almost surely, 2^122156512755 is an apocalyptic number.

122156512755 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

122156512755 is a deficient number, since it is larger than the sum of its proper divisors (83580772365).

122156512755 is a wasteful number, since it uses less digits than its factorization.

122156512755 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428619370.

The product of its digits is 210000, while the sum is 42.

The spelling of 122156512755 in words is "one hundred twenty-two billion, one hundred fifty-six million, five hundred twelve thousand, seven hundred fifty-five".