222164 has 6 divisors (see below), whose sum is σ = 388794. Its totient is φ = 111080.

The previous prime is 222163. The next prime is 222193. The reversal of 222164 is 461222.

It can be written as a sum of positive squares in only one way, i.e., 136900 + 85264 = 370^2 + 292^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27767 + ... + 27774.

It is an arithmetic number, because the mean of its divisors is an integer number (64799).

2²²²¹⁶⁴ is an apocalyptic number.

It is an amenable number.

222164 is a deficient number, since it is larger than the sum of its proper divisors (166630).

222164 is a wasteful number, since it uses less digits than its factorization.

222164 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55545 (or 55543 counting only the distinct ones).

The product of its digits is 192, while the sum is 17.

The square root of 222164 is about 471.3427627534. The cubic root of 222164 is about 60.5653961257.

Adding to 222164 its reverse (461222), we get a palindrome (683386).

The spelling of 222164 in words is "two hundred twenty-two thousand, one hundred sixty-four".