22156117 has 8 divisors (see below), whose sum is σ = 23500800. Its totient is φ = 20816064.

The previous prime is 22156111. The next prime is 22156133. The reversal of 22156117 is 71165122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 22156117 - 2⁷ = 22155989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 22156091 and 22156100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16684 + ... + 17962.

It is an arithmetic number, because the mean of its divisors is an integer number (2937600).

Almost surely, 2^22156117 is an apocalyptic number.

It is an amenable number.

22156117 is a deficient number, since it is larger than the sum of its proper divisors (1344683).

22156117 is a wasteful number, since it uses less digits than its factorization.

22156117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2315.

The product of its digits is 840, while the sum is 25.

The square root of 22156117 is about 4707.0284681527. The cubic root of 22156117 is about 280.8651683619.

The spelling of 22156117 in words is "twenty-two million, one hundred fifty-six thousand, one hundred seventeen".