122312892 has 72 divisors (see below), whose sum is σ = 326613616. Its totient is φ = 35407872.

The previous prime is 122312857. The next prime is 122312893. The reversal of 122312892 is 298213221.

It is a hoax number, since the sum of its digits (30) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122312893) 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, 43728 + ... + 46440.

Almost surely, 2^122312892 is an apocalyptic number.

122312892 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 122312892, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (163306808).

122312892 is an abundant number, since it is smaller than the sum of its proper divisors (204300724).

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

122312892 is a wasteful number, since it uses less digits than its factorization.

122312892 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2767 (or 2748 counting only the distinct ones).

The product of its digits is 3456, while the sum is 30.

The square root of 122312892 is about 11059.5159026062. The cubic root of 122312892 is about 496.3912051985.

The spelling of 122312892 in words is "one hundred twenty-two million, three hundred twelve thousand, eight hundred ninety-two".