122125025190 has 128 divisors (see below), whose sum is σ = 340499801088. Its totient is φ = 27454901760.

The previous prime is 122125025159. The next prime is 122125025201. The reversal of 122125025190 is 91520521221.

It is a super-2 number, since 2×122125025190² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9518980 + ... + 9531800.

It is an arithmetic number, because the mean of its divisors is an integer number (2660154696).

Almost surely, 2^122125025190 is an apocalyptic number.

122125025190 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 122125025190, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (170249900544).

122125025190 is an abundant number, since it is smaller than the sum of its proper divisors (218374775898).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122125025190 is a wasteful number, since it uses less digits than its factorization.

122125025190 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13582.

The product of its (nonzero) digits is 3600, while the sum is 30.

The spelling of 122125025190 in words is "one hundred twenty-two billion, one hundred twenty-five million, twenty-five thousand, one hundred ninety".