222001166 has 8 divisors (see below), whose sum is σ = 333066720. Its totient is φ = 110978928.

The previous prime is 222001159. The next prime is 222001201. The reversal of 222001166 is 661100222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a zygodrome in base 10.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9995 + ... + 23321.

It is an arithmetic number, because the mean of its divisors is an integer number (41633340).

Almost surely, 2^222001166 is an apocalyptic number.

222001166 is a deficient number, since it is larger than the sum of its proper divisors (111065554).

222001166 is a wasteful number, since it uses less digits than its factorization.

222001166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21658.

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

The square root of 222001166 is about 14899.7035540980. The cubic root of 222001166 is about 605.5059547374.

Adding to 222001166 its reverse (661100222), we get a palindrome (883101388).

The spelling of 222001166 in words is "two hundred twenty-two million, one thousand, one hundred sixty-six".