22210444 has 6 divisors (see below), whose sum is σ = 38868284. Its totient is φ = 11105220.

The previous prime is 22210427. The next prime is 22210451. The reversal of 22210444 is 44401222.

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 as a sum of consecutive naturals, namely, 2776302 + ... + 2776309.

Almost surely, 2^22210444 is an apocalyptic number.

It is an amenable number.

22210444 is a deficient number, since it is larger than the sum of its proper divisors (16657840).

22210444 is a wasteful number, since it uses less digits than its factorization.

22210444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5552615 (or 5552613 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 19.

The square root of 22210444 is about 4712.7957732115. The cubic root of 22210444 is about 281.0945423024.

Adding to 22210444 its reverse (44401222), we get a palindrome (66611666).

The spelling of 22210444 in words is "twenty-two million, two hundred ten thousand, four hundred forty-four".