122188308 has 24 divisors (see below), whose sum is σ = 311025120. Its totient is φ = 37026720.

The previous prime is 122188303. The next prime is 122188321. The reversal of 122188308 is 803881221.

It is a super-2 number, since 2×122188308² = 29859965223805728, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122188303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 462703 + ... + 462966.

It is an arithmetic number, because the mean of its divisors is an integer number (12959380).

Almost surely, 2^122188308 is an apocalyptic number.

It is an amenable number.

122188308 is an abundant number, since it is smaller than the sum of its proper divisors (188836812).

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

122188308 is a wasteful number, since it uses less digits than its factorization.

122188308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 925687 (or 925685 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 33.

The square root of 122188308 is about 11053.8820330235. The cubic root of 122188308 is about 496.2226118756. Note that the first 3 decimals are identical.

The spelling of 122188308 in words is "one hundred twenty-two million, one hundred eighty-eight thousand, three hundred eight".