222224644 has 12 divisors (see below), whose sum is σ = 392744268. Its totient is φ = 110012000.

The previous prime is 222224599. The next prime is 222224669. The reversal of 222224644 is 446422222.

It can be written as a sum of positive squares in 2 ways, for example, as 205578244 + 16646400 = 14338^2 + 4080^2 .

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, 274627 + ... + 275434.

It is an arithmetic number, because the mean of its divisors is an integer number (32728689).

Almost surely, 2^222224644 is an apocalyptic number.

It is an amenable number.

222224644 is a deficient number, since it is larger than the sum of its proper divisors (170519624).

222224644 is a wasteful number, since it uses less digits than its factorization.

222224644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 550166 (or 550164 counting only the distinct ones).

The product of its digits is 12288, while the sum is 28.

The square root of 222224644 is about 14907.2010786734. The cubic root of 222224644 is about 605.7090646005.

Adding to 222224644 its reverse (446422222), we get a palindrome (668646866).

The spelling of 222224644 in words is "two hundred twenty-two million, two hundred twenty-four thousand, six hundred forty-four".