22112404 has 6 divisors (see below), whose sum is σ = 38696714. Its totient is φ = 11056200.

The previous prime is 22112401. The next prime is 22112429. The reversal of 22112404 is 40421122.

It can be written as a sum of positive squares in only one way, i.e., 22108804 + 3600 = 4702^2 + 60^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112401) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2764047 + ... + 2764054.

Almost surely, 2^22112404 is an apocalyptic number.

It is an amenable number.

22112404 is a deficient number, since it is larger than the sum of its proper divisors (16584310).

22112404 is a wasteful number, since it uses less digits than its factorization.

22112404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5528105 (or 5528103 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 22112404 is about 4702.3828002407. The cubic root of 22112404 is about 280.6803353990.

Adding to 22112404 its reverse (40421122), we get a palindrome (62533526).

The spelling of 22112404 in words is "twenty-two million, one hundred twelve thousand, four hundred four".