22156126 has 4 divisors (see below), whose sum is σ = 33234192. Its totient is φ = 11078062.

The previous prime is 22156111. The next prime is 22156133. The reversal of 22156126 is 62165122.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 22156126.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5539030 + ... + 5539033.

It is an arithmetic number, because the mean of its divisors is an integer number (8308548).

Almost surely, 2^22156126 is an apocalyptic number.

22156126 is a deficient number, since it is larger than the sum of its proper divisors (11078066).

22156126 is a wasteful number, since it uses less digits than its factorization.

22156126 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11078065.

The product of its digits is 1440, while the sum is 25.

The square root of 22156126 is about 4707.0294241698. The cubic root of 22156126 is about 280.8652063918.

The spelling of 22156126 in words is "twenty-two million, one hundred fifty-six thousand, one hundred twenty-six".