22156022 has 8 divisors (see below), whose sum is σ = 37981776. Its totient is φ = 9495432.

The previous prime is 22156019. The next prime is 22156027. The reversal of 22156022 is 22065122.

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

It is a junction number, because it is equal to n+sod(n) for n = 22155985 and 22156003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22156027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 791273 + ... + 791300.

It is an arithmetic number, because the mean of its divisors is an integer number (4747722).

Almost surely, 2^22156022 is an apocalyptic number.

22156022 is a deficient number, since it is larger than the sum of its proper divisors (15825754).

22156022 is a wasteful number, since it uses less digits than its factorization.

22156022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1582582.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 22156022 is about 4707.0183768496. The cubic root of 22156022 is about 280.8647669343.

The spelling of 22156022 in words is "twenty-two million, one hundred fifty-six thousand, twenty-two".