22256109 has 24 divisors (see below), whose sum is σ = 33423104. Its totient is φ = 14256000.

The previous prime is 22256099. The next prime is 22256123. The reversal of 22256109 is 90165222.

22256109 is a `hidden beast` number, since 22 + 25 + 610 + 9 = 666.

It is not a de Polignac number, because 22256109 - 2⁸ = 22255853 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22256189) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 67074 + ... + 67404.

Almost surely, 2^22256109 is an apocalyptic number.

It is an amenable number.

22256109 is a deficient number, since it is larger than the sum of its proper divisors (11166995).

22256109 is a wasteful number, since it uses less digits than its factorization.

22256109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609 (or 606 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 27.

The square root of 22256109 is about 4717.6380742910. The cubic root of 22256109 is about 281.2870552658.

The spelling of 22256109 in words is "twenty-two million, two hundred fifty-six thousand, one hundred nine".