222322220 has 48 divisors (see below), whose sum is σ = 480066048. Its totient is φ = 86443200.

The previous prime is 222322193. The next prime is 222322231. The reversal of 222322220 is 22223222.

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, 152495 + ... + 153945.

It is an arithmetic number, because the mean of its divisors is an integer number (10001376).

Almost surely, 2^222322220 is an apocalyptic number.

222322220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222322220 is an abundant number, since it is smaller than the sum of its proper divisors (257743828).

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

222322220 is a wasteful number, since it uses less digits than its factorization.

222322220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1670 (or 1668 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 17.

The square root of 222322220 is about 14910.4735001944. The cubic root of 222322220 is about 605.7977046636.

Adding to 222322220 its reverse (22223222), we get a palindrome (244545442).

The spelling of 222322220 in words is "two hundred twenty-two million, three hundred twenty-two thousand, two hundred twenty".