222203220 has 48 divisors (see below), whose sum is σ = 643628160. Its totient is φ = 57210496.

The previous prime is 222203213. The next prime is 222203237. The reversal of 222203220 is 22302222.

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 222203220.

It is a congruent number.

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, 62112 + ... + 65591.

It is an arithmetic number, because the mean of its divisors is an integer number (13408920).

Almost surely, 2^222203220 is an apocalyptic number.

222203220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222203220 is an abundant number, since it is smaller than the sum of its proper divisors (421424940).

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

222203220 is a wasteful number, since it uses less digits than its factorization.

222203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127744 (or 127742 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 15.

The square root of 222203220 is about 14906.4824824638. The cubic root of 222203220 is about 605.6895991206.

Adding to 222203220 its reverse (22302222), we get a palindrome (244505442).

The spelling of 222203220 in words is "two hundred twenty-two million, two hundred three thousand, two hundred twenty".