22112885 has 4 divisors (see below), whose sum is σ = 26535468. Its totient is φ = 17690304.

The previous prime is 22112873. The next prime is 22112887. The reversal of 22112885 is 58821122.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 8994001 + 13118884 = 2999^2 + 3622^2 .

It is a cyclic number.

It is not a de Polignac number, because 22112885 - 2²² = 17918581 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22112887) by changing a digit.

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, 2211284 + ... + 2211293.

It is an arithmetic number, because the mean of its divisors is an integer number (6633867).

Almost surely, 2^22112885 is an apocalyptic number.

It is an amenable number.

22112885 is a deficient number, since it is larger than the sum of its proper divisors (4422583).

22112885 is an equidigital number, since it uses as much as digits as its factorization.

22112885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4422582.

The product of its digits is 2560, while the sum is 29.

The square root of 22112885 is about 4702.4339442463. The cubic root of 22112885 is about 280.6823705503.

The spelling of 22112885 in words is "twenty-two million, one hundred twelve thousand, eight hundred eighty-five".