222243166 has 8 divisors (see below), whose sum is σ = 340457760. Its totient is φ = 108757248.

The previous prime is 222243163. The next prime is 222243187. The reversal of 222243166 is 661342222.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222243163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1182051 + ... + 1182238.

It is an arithmetic number, because the mean of its divisors is an integer number (42557220).

Almost surely, 2^222243166 is an apocalyptic number.

222243166 is a deficient number, since it is larger than the sum of its proper divisors (118214594).

222243166 is a wasteful number, since it uses less digits than its factorization.

222243166 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2364338.

The product of its digits is 6912, while the sum is 28.

The square root of 222243166 is about 14907.8223091101. The cubic root of 222243166 is about 605.7258923646.

Adding to 222243166 its reverse (661342222), we get a palindrome (883585388).

The spelling of 222243166 in words is "two hundred twenty-two million, two hundred forty-three thousand, one hundred sixty-six".