122131028 has 24 divisors (see below), whose sum is σ = 218152704. Its totient is φ = 59810400.

The previous prime is 122131021. The next prime is 122131039. The reversal of 122131028 is 820131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122131021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65201 + ... + 67047.

It is an arithmetic number, because the mean of its divisors is an integer number (9089696).

Almost surely, 2^122131028 is an apocalyptic number.

It is an amenable number.

122131028 is a deficient number, since it is larger than the sum of its proper divisors (96021676).

122131028 is a wasteful number, since it uses less digits than its factorization.

122131028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2183 (or 2181 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 122131028 is about 11051.2907843383. The cubic root of 122131028 is about 496.1450592457.

Adding to 122131028 its reverse (820131221), we get a palindrome (942262249).

The spelling of 122131028 in words is "one hundred twenty-two million, one hundred thirty-one thousand, twenty-eight".