22091312 has 10 divisors (see below), whose sum is σ = 42801948. Its totient is φ = 11045648.

The previous prime is 22091299. The next prime is 22091341. The reversal of 22091312 is 21319022.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 690338 + ... + 690369.

Almost surely, 2^22091312 is an apocalyptic number.

It is an amenable number.

22091312 is a deficient number, since it is larger than the sum of its proper divisors (20710636).

22091312 is a wasteful number, since it uses less digits than its factorization.

22091312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1380715 (or 1380709 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 22091312 is about 4700.1395723957. The cubic root of 22091312 is about 280.5910643434.

The spelling of 22091312 in words is "twenty-two million, ninety-one thousand, three hundred twelve".