122401188 has 72 divisors (see below), whose sum is σ = 380813888. Its totient is φ = 32280768.

The previous prime is 122401163. The next prime is 122401189. The reversal of 122401188 is 881104221.

It is a super-2 number, since 2×122401188² = 29964101647622688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (122401189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15406 + ... + 21957.

Almost surely, 2^122401188 is an apocalyptic number.

122401188 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

122401188 is an abundant number, since it is smaller than the sum of its proper divisors (258412700).

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

122401188 is a wasteful number, since it uses less digits than its factorization.

122401188 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37393 (or 37388 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 27.

The square root of 122401188 is about 11063.5070389095. The cubic root of 122401188 is about 496.5106224700.

The spelling of 122401188 in words is "one hundred twenty-two million, four hundred one thousand, one hundred eighty-eight".