122111940 has 48 divisors (see below), whose sum is σ = 350259840. Its totient is φ = 31768320.

The previous prime is 122111933. The next prime is 122111971. The reversal of 122111940 is 49111221.

It is a happy number.

It is a super-2 number, since 2×122111940² = 29822651781127200, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22360 + ... + 27279.

It is an arithmetic number, because the mean of its divisors is an integer number (7297080).

Almost surely, 2^122111940 is an apocalyptic number.

122111940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122111940 is an abundant number, since it is smaller than the sum of its proper divisors (228147900).

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

122111940 is a wasteful number, since it uses less digits than its factorization.

122111940 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49692 (or 49690 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 122111940 is about 11050.4271410656. The cubic root of 122111940 is about 496.1192102034.

The spelling of 122111940 in words is "one hundred twenty-two million, one hundred eleven thousand, nine hundred forty".