222202220 has 12 divisors (see below), whose sum is σ = 466624704. Its totient is φ = 88880880.

The previous prime is 222202181. The next prime is 222202231. The reversal of 222202220 is 22202222.

It is a happy number.

It is a hoax number, since the sum of its digits (14) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 222202195 and 222202204.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5555036 + ... + 5555075.

It is an arithmetic number, because the mean of its divisors is an integer number (38885392).

Almost surely, 2^222202220 is an apocalyptic number.

222202220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222202220 is an abundant number, since it is smaller than the sum of its proper divisors (244422484).

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

222202220 is a wasteful number, since it uses less digits than its factorization.

222202220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11110120 (or 11110118 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 14.

The square root of 222202220 is about 14906.4489399723. The cubic root of 222202220 is about 605.6886905071.

Adding to 222202220 its reverse (22202222), we get a palindrome (244404442).

The spelling of 222202220 in words is "two hundred twenty-two million, two hundred two thousand, two hundred twenty".