22120444 has 12 divisors (see below), whose sum is σ = 38782800. Its totient is φ = 11039648.

The previous prime is 22120433. The next prime is 22120459. The reversal of 22120444 is 44402122.

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, 2584 + ... + 7135.

It is an arithmetic number, because the mean of its divisors is an integer number (3231900).

Almost surely, 2^22120444 is an apocalyptic number.

It is an amenable number.

22120444 is a deficient number, since it is larger than the sum of its proper divisors (16662356).

22120444 is a wasteful number, since it uses less digits than its factorization.

22120444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10292 (or 10290 counting only the distinct ones).

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

The square root of 22120444 is about 4703.2376082864. The cubic root of 22120444 is about 280.7143494370.

Adding to 22120444 its reverse (44402122), we get a palindrome (66522566).

The spelling of 22120444 in words is "twenty-two million, one hundred twenty thousand, four hundred forty-four".