22012244 has 24 divisors (see below), whose sum is σ = 39984000. Its totient is φ = 10595520.

The previous prime is 22012231. The next prime is 22012261. The reversal of 22012244 is 44221022.

It is a happy number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 12107 + ... + 13805.

It is an arithmetic number, because the mean of its divisors is an integer number (1666000).

Almost surely, 2^22012244 is an apocalyptic number.

It is an amenable number.

22012244 is a deficient number, since it is larger than the sum of its proper divisors (17971756).

22012244 is a wasteful number, since it uses less digits than its factorization.

22012244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1823 (or 1821 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 17.

The square root of 22012244 is about 4691.7207930566. The cubic root of 22012244 is about 280.2559055002.

Adding to 22012244 its reverse (44221022), we get a palindrome (66233266).

The spelling of 22012244 in words is "twenty-two million, twelve thousand, two hundred forty-four".