222998 has 8 divisors (see below), whose sum is σ = 342408. Its totient is φ = 108864.

The previous prime is 222991. The next prime is 223007. The reversal of 222998 is 899222.

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 (222991) by changing a digit.

222998 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 in 3 ways as a sum of consecutive naturals, for example, 1211 + ... + 1382.

It is an arithmetic number, because the mean of its divisors is an integer number (42801).

2²²²⁹⁹⁸ is an apocalyptic number.

222998 is a deficient number, since it is larger than the sum of its proper divisors (119410).

222998 is a wasteful number, since it uses less digits than its factorization.

222998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2638.

The product of its digits is 5184, while the sum is 32.

The square root of 222998 is about 472.2266405022. The cubic root of 222998 is about 60.6410886552.

It can be divided in two parts, 22 and 2998, that multiplied together give a palindrome (65956).

The spelling of 222998 in words is "two hundred twenty-two thousand, nine hundred ninety-eight".