122131121 has 16 divisors (see below), whose sum is σ = 143299200. Its totient is φ = 101927808.

The previous prime is 122131091. The next prime is 122131123. The reversal of 122131121 is 121131221.

It is a cyclic number.

It is not a de Polignac number, because 122131121 - 2⁶ = 122131057 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 122131096 and 122131105.

It is not an unprimeable number, because it can be changed into a prime (122131123) 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, 43661 + ... + 46373.

It is an arithmetic number, because the mean of its divisors is an integer number (8956200).

Almost surely, 2^122131121 is an apocalyptic number.

It is an amenable number.

122131121 is a deficient number, since it is larger than the sum of its proper divisors (21168079).

122131121 is a wasteful number, since it uses less digits than its factorization.

122131121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2888.

The product of its digits is 24, while the sum is 14.

The square root of 122131121 is about 11051.2949919908. The cubic root of 122131121 is about 496.1451851801.

Adding to 122131121 its reverse (121131221), we get a palindrome (243262342).

The spelling of 122131121 in words is "one hundred twenty-two million, one hundred thirty-one thousand, one hundred twenty-one".