122572812 has 12 divisors (see below), whose sum is σ = 286003256. Its totient is φ = 40857600.

The previous prime is 122572811. The next prime is 122572831. The reversal of 122572812 is 218275221.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 122572812.

It is not an unprimeable number, because it can be changed into a prime (122572811) 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 3 ways as a sum of consecutive naturals, for example, 5107189 + ... + 5107212.

Almost surely, 2^122572812 is an apocalyptic number.

122572812 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

122572812 is an abundant number, since it is smaller than the sum of its proper divisors (163430444).

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

122572812 is a wasteful number, since it uses less digits than its factorization.

122572812 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10214408 (or 10214406 counting only the distinct ones).

The product of its digits is 4480, while the sum is 30.

The square root of 122572812 is about 11071.2606328277. The cubic root of 122572812 is about 496.7425737673.

The spelling of 122572812 in words is "one hundred twenty-two million, five hundred seventy-two thousand, eight hundred twelve".