22199966 has 4 divisors (see below), whose sum is σ = 33299952. Its totient is φ = 11099982.

The previous prime is 22199959. The next prime is 22199971. The reversal of 22199966 is 66999122.

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

It is a Curzon number.

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, 5549990 + ... + 5549993.

It is an arithmetic number, because the mean of its divisors is an integer number (8324988).

Almost surely, 2^22199966 is an apocalyptic number.

22199966 is a deficient number, since it is larger than the sum of its proper divisors (11099986).

22199966 is a wasteful number, since it uses less digits than its factorization.

22199966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11099985.

The product of its digits is 104976, while the sum is 44.

The square root of 22199966 is about 4711.6839877055. The cubic root of 22199966 is about 281.0503322918.

The spelling of 22199966 in words is "twenty-two million, one hundred ninety-nine thousand, nine hundred sixty-six".