122123855 has 16 divisors (see below), whose sum is σ = 168713280. Its totient is φ = 83127552.

The previous prime is 122123851. The next prime is 122123857. The reversal of 122123855 is 558321221.

It is a cyclic number.

It is not a de Polignac number, because 122123855 - 2² = 122123851 is a prime.

It is a super-2 number, since 2×122123855² = 29828471920122050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122123851) 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 in 15 ways as a sum of consecutive naturals, for example, 7940 + ... + 17529.

It is an arithmetic number, because the mean of its divisors is an integer number (10544580).

Almost surely, 2^122123855 is an apocalyptic number.

122123855 is a deficient number, since it is larger than the sum of its proper divisors (46589425).

122123855 is a wasteful number, since it uses less digits than its factorization.

122123855 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25618.

The product of its digits is 4800, while the sum is 29.

The square root of 122123855 is about 11050.9662473469. The cubic root of 122123855 is about 496.1353458577.

The spelling of 122123855 in words is "one hundred twenty-two million, one hundred twenty-three thousand, eight hundred fifty-five".