22200666 has 16 divisors (see below), whose sum is σ = 45601824. Its totient is φ = 7200144.

The previous prime is 22200641. The next prime is 22200671. The reversal of 22200666 is 66600222.

22200666 is a modest number, since divided by 666 gives 222 as remainder.

It is a zygodrome in base 10.

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, 49780 + ... + 50223.

It is an arithmetic number, because the mean of its divisors is an integer number (2850114).

Almost surely, 2^22200666 is an apocalyptic number.

22200666 is an abundant number, since it is smaller than the sum of its proper divisors (23401158).

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

22200666 is a wasteful number, since it uses less digits than its factorization.

22200666 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100045.

The product of its (nonzero) digits is 1728, while the sum is 24.

The square root of 22200666 is about 4711.7582705398. The cubic root of 22200666 is about 281.0532862477.

Adding to 22200666 its reverse (66600222), we get a palindrome (88800888).

The spelling of 22200666 in words is "twenty-two million, two hundred thousand, six hundred sixty-six".