222668 has 6 divisors (see below), whose sum is σ = 389676. Its totient is φ = 111332.

The previous prime is 222659. The next prime is 222679. The reversal of 222668 is 866222.

It is a plaindrome in base 10.

It is an unprimeable number.

222668 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27830 + ... + 27837.

It is an arithmetic number, because the mean of its divisors is an integer number (64946).

2²²²⁶⁶⁸ is an apocalyptic number.

It is an amenable number.

222668 is a deficient number, since it is larger than the sum of its proper divisors (167008).

222668 is a wasteful number, since it uses less digits than its factorization.

222668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55671 (or 55669 counting only the distinct ones).

The product of its digits is 2304, while the sum is 26.

The square root of 222668 is about 471.8771026443. The cubic root of 222668 is about 60.6111609748.

The spelling of 222668 in words is "two hundred twenty-two thousand, six hundred sixty-eight".