22188022 has 4 divisors (see below), whose sum is σ = 33282036. Its totient is φ = 11094010.

The previous prime is 22188007. The next prime is 22188053. The reversal of 22188022 is 22088122.

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

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, 5547004 + ... + 5547007.

It is an arithmetic number, because the mean of its divisors is an integer number (8320509).

Almost surely, 2^22188022 is an apocalyptic number.

22188022 is a deficient number, since it is larger than the sum of its proper divisors (11094014).

22188022 is a wasteful number, since it uses less digits than its factorization.

22188022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11094013.

The product of its (nonzero) digits is 1024, while the sum is 25.

The square root of 22188022 is about 4710.4163297951. The cubic root of 22188022 is about 280.9999197916. Note that the first 4 decimals are identical.

The spelling of 22188022 in words is "twenty-two million, one hundred eighty-eight thousand, twenty-two".