22166210 has 16 divisors (see below), whose sum is σ = 43526592. Its totient is φ = 8060400.

The previous prime is 22166201. The next prime is 22166233. The reversal of 22166210 is 1266122.

It is a happy number.

It is an unprimeable number.

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, 100646 + ... + 100865.

It is an arithmetic number, because the mean of its divisors is an integer number (2720412).

Almost surely, 2^22166210 is an apocalyptic number.

22166210 is a deficient number, since it is larger than the sum of its proper divisors (21360382).

22166210 is a wasteful number, since it uses less digits than its factorization.

22166210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201529.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 22166210 is about 4708.1004662178. The cubic root of 22166210 is about 280.9078103375.

The spelling of 22166210 in words is "twenty-two million, one hundred sixty-six thousand, two hundred ten".