22185822 has 16 divisors (see below), whose sum is σ = 45099792. Its totient is φ = 7273920.

The previous prime is 22185811. The next prime is 22185847. The reversal of 22185822 is 22858122.

It is a self number, because there is not a number n which added to its sum of digits gives 22185822.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29943 + ... + 30674.

It is an arithmetic number, because the mean of its divisors is an integer number (2818737).

Almost surely, 2^22185822 is an apocalyptic number.

22185822 is an abundant number, since it is smaller than the sum of its proper divisors (22913970).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

22185822 is a wasteful number, since it uses less digits than its factorization.

22185822 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60683.

The product of its digits is 5120, while the sum is 30.

The square root of 22185822 is about 4710.1827990005. The cubic root of 22185822 is about 280.9906321940.

The spelling of 22185822 in words is "twenty-two million, one hundred eighty-five thousand, eight hundred twenty-two".