222002102220 has 48 divisors (see below), whose sum is σ = 636767012448. Its totient is φ = 57756643840.

The previous prime is 222002102171. The next prime is 222002102279. The reversal of 222002102220 is 22201200222.

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 222002102220.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45119919 + ... + 45124838.

It is an arithmetic number, because the mean of its divisors is an integer number (13265979426).

Almost surely, 2^222002102220 is an apocalyptic number.

222002102220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222002102220 is an abundant number, since it is smaller than the sum of its proper divisors (414764910228).

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

222002102220 is a wasteful number, since it uses less digits than its factorization.

222002102220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90244810 (or 90244808 counting only the distinct ones).

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

Adding to 222002102220 its reverse (22201200222), we get a palindrome (244203302442).

The spelling of 222002102220 in words is "two hundred twenty-two billion, two million, one hundred two thousand, two hundred twenty".