222391144 has 16 divisors (see below), whose sum is σ = 441512100. Its totient is φ = 104654592.

The previous prime is 222391129. The next prime is 222391151. The reversal of 222391144 is 441193222.

It can be written as a sum of positive squares in 2 ways, for example, as 177902244 + 44488900 = 13338^2 + 6670^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 817479 + ... + 817750.

Almost surely, 2^222391144 is an apocalyptic number.

It is an amenable number.

222391144 is a deficient number, since it is larger than the sum of its proper divisors (219120956).

222391144 is a wasteful number, since it uses less digits than its factorization.

222391144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1635252 (or 1635248 counting only the distinct ones).

The product of its digits is 3456, while the sum is 28.

The square root of 222391144 is about 14912.7845823642. The cubic root of 222391144 is about 605.8603010262.

The spelling of 222391144 in words is "two hundred twenty-two million, three hundred ninety-one thousand, one hundred forty-four".