222190844 has 18 divisors (see below), whose sum is σ = 390824784. Its totient is φ = 110528920.

The previous prime is 222190831. The next prime is 222190861. The reversal of 222190844 is 448091222.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 222190844.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 515309 + ... + 515739.

It is an arithmetic number, because the mean of its divisors is an integer number (21712488).

Almost surely, 2^222190844 is an apocalyptic number.

It is an amenable number.

222190844 is a deficient number, since it is larger than the sum of its proper divisors (168633940).

222190844 is an equidigital number, since it uses as much as digits as its factorization.

222190844 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153 (or 792 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 222190844 is about 14906.0673552752. The cubic root of 222190844 is about 605.6783539285.

The spelling of 222190844 in words is "two hundred twenty-two million, one hundred ninety thousand, eight hundred forty-four".