222146166 has 16 divisors (see below), whose sum is σ = 484682688. Its totient is φ = 67317000.

The previous prime is 222146143. The next prime is 222146189. The reversal of 222146166 is 661641222.

It is an interprime number because it is at equal distance from previous prime (222146143) and next prime (222146189).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1682860 + ... + 1682991.

It is an arithmetic number, because the mean of its divisors is an integer number (30292668).

Almost surely, 2^222146166 is an apocalyptic number.

222146166 is an abundant number, since it is smaller than the sum of its proper divisors (262536522).

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

222146166 is a wasteful number, since it uses less digits than its factorization.

222146166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3365867.

The product of its digits is 6912, while the sum is 30.

The square root of 222146166 is about 14904.5686284441. The cubic root of 222146166 is about 605.6377547287.

Adding to 222146166 its reverse (661641222), we get a palindrome (883787388).

The spelling of 222146166 in words is "two hundred twenty-two million, one hundred forty-six thousand, one hundred sixty-six".