222001122120 has 64 divisors (see below), whose sum is σ = 687487357440. Its totient is φ = 57290611200.

The previous prime is 222001122107. The next prime is 222001122127. The reversal of 222001122120 is 21221100222.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 222001122120.

It is not an unprimeable number, because it can be changed into a prime (222001122127) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 29835141 + ... + 29842580.

It is an arithmetic number, because the mean of its divisors is an integer number (10741989960).

Almost surely, 2^222001122120 is an apocalyptic number.

222001122120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222001122120 is an abundant number, since it is smaller than the sum of its proper divisors (465486235320).

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

222001122120 is a wasteful number, since it uses less digits than its factorization.

222001122120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59677766 (or 59677762 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 222001122120 its reverse (21221100222), we get a palindrome (243222222342).

The spelling of 222001122120 in words is "two hundred twenty-two billion, one million, one hundred twenty-two thousand, one hundred twenty".