222055200 has 108 divisors (see below), whose sum is σ = 783047538. Its totient is φ = 59212800.

The previous prime is 222055199. The next prime is 222055237. The reversal of 222055200 is 2550222.

It can be written as a sum of positive squares in 3 ways, for example, as 192765456 + 29289744 = 13884^2 + 5412^2 .

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 8221 + ... + 22620.

Almost surely, 2^222055200 is an apocalyptic number.

222055200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222055200 is an abundant number, since it is smaller than the sum of its proper divisors (560992338).

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

222055200 is a wasteful number, since it uses less digits than its factorization.

222055200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30867 (or 30851 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 18.

The square root of 222055200 is about 14901.5167013294. The cubic root of 222055200 is about 605.5550764834. Note that the first 3 decimals are identical.

The spelling of 222055200 in words is "two hundred twenty-two million, fifty-five thousand, two hundred".