22126816 has 12 divisors (see below), whose sum is σ = 43562232. Its totient is φ = 11063392.

The previous prime is 22126813. The next prime is 22126823. The reversal of 22126816 is 61862122.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22126813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 345700 + ... + 345763.

It is an arithmetic number, because the mean of its divisors is an integer number (3630186).

Almost surely, 2^22126816 is an apocalyptic number.

It is an amenable number.

22126816 is a deficient number, since it is larger than the sum of its proper divisors (21435416).

22126816 is an equidigital number, since it uses as much as digits as its factorization.

22126816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691473 (or 691465 counting only the distinct ones).

The product of its digits is 2304, while the sum is 28.

The square root of 22126816 is about 4703.9149652178. The cubic root of 22126816 is about 280.7413009772.

Adding to 22126816 its reverse (61862122), we get a palindrome (83988938).

The spelling of 22126816 in words is "twenty-two million, one hundred twenty-six thousand, eight hundred sixteen".