122125129 has 16 divisors (see below), whose sum is σ = 143156736. Its totient is φ = 102009600.

The previous prime is 122125109. The next prime is 122125153. The reversal of 122125129 is 921521221.

It is not a de Polignac number, because 122125129 - 2⁵ = 122125097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (122125109) 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, 91789 + ... + 93109.

It is an arithmetic number, because the mean of its divisors is an integer number (8947296).

Almost surely, 2^122125129 is an apocalyptic number.

It is an amenable number.

122125129 is a deficient number, since it is larger than the sum of its proper divisors (21031607).

122125129 is a wasteful number, since it uses less digits than its factorization.

122125129 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1656.

The product of its digits is 720, while the sum is 25.

The square root of 122125129 is about 11051.0238892150. The cubic root of 122125129 is about 496.1370710850.

The spelling of 122125129 in words is "one hundred twenty-two million, one hundred twenty-five thousand, one hundred twenty-nine".