122222912 has 56 divisors (see below), whose sum is σ = 279196800. Its totient is φ = 52001280.

The previous prime is 122222887. The next prime is 122222921. The reversal of 122222912 is 219222221.

It is a tau number, because it is divible by the number of its divisors (56).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 65837 + ... + 67667.

Almost surely, 2^122222912 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122222912, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (139598400).

122222912 is an abundant number, since it is smaller than the sum of its proper divisors (156973888).

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

122222912 is a wasteful number, since it uses less digits than its factorization.

122222912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999 (or 1989 counting only the distinct ones).

The product of its digits is 576, while the sum is 23.

The square root of 122222912 is about 11055.4471641811. The cubic root of 122222912 is about 496.2694512359.

The spelling of 122222912 in words is "one hundred twenty-two million, two hundred twenty-two thousand, nine hundred twelve".