222102002220 has 96 divisors (see below), whose sum is σ = 752533867008. Its totient is φ = 47779924992.

The previous prime is 222102002179. The next prime is 222102002267. The reversal of 222102002220 is 22200201222.

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 222102002220.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 15546222 + ... + 15560501.

It is an arithmetic number, because the mean of its divisors is an integer number (7838894448).

Almost surely, 2^222102002220 is an apocalyptic number.

222102002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222102002220 is an abundant number, since it is smaller than the sum of its proper divisors (530431864788).

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

222102002220 is a wasteful number, since it uses less digits than its factorization.

222102002220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31106759 (or 31106757 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 15.

Adding to 222102002220 its reverse (22200201222), we get a palindrome (244302203442).

The spelling of 222102002220 in words is "two hundred twenty-two billion, one hundred two million, two thousand, two hundred twenty".