222163444 has 12 divisors (see below), whose sum is σ = 393470784. Its totient is φ = 109743224.

The previous prime is 222163423. The next prime is 222163471. The reversal of 222163444 is 444361222.

It is a super-2 number, since 2×222163444² = 98713191699882272, which contains 22 as substring.

It is a congruent number.

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, 334252 + ... + 334915.

It is an arithmetic number, because the mean of its divisors is an integer number (32789232).

Almost surely, 2^222163444 is an apocalyptic number.

It is an amenable number.

222163444 is a deficient number, since it is larger than the sum of its proper divisors (171307340).

222163444 is a wasteful number, since it uses less digits than its factorization.

222163444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 669254 (or 669252 counting only the distinct ones).

The product of its digits is 9216, while the sum is 28.

The square root of 222163444 is about 14905.1482381089. The cubic root of 222163444 is about 605.6534560092.

Adding to 222163444 its product of digits (9216), we get a triangular number (222172660 = T₂₁₀₇₉).

The spelling of 222163444 in words is "two hundred twenty-two million, one hundred sixty-three thousand, four hundred forty-four".