222276 has 12 divisors (see below), whose sum is σ = 518672. Its totient is φ = 74088.

The previous prime is 222269. The next prime is 222289. The reversal of 222276 is 672222.

222276 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is an Ulam number.

It is a nialpdrome in base 12.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 222276.

It is an unprimeable number.

222276 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9250 + ... + 9273.

2²²²²⁷⁶ is an apocalyptic number.

It is an amenable number.

222276 is an abundant number, since it is smaller than the sum of its proper divisors (296396).

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

222276 is a wasteful number, since it uses less digits than its factorization.

222276 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18530 (or 18528 counting only the distinct ones).

The product of its digits is 672, while the sum is 21.

The square root of 222276 is about 471.4615572875. The cubic root of 222276 is about 60.5755720690.

Adding to 222276 its reverse (672222), we get a palindrome (894498).

The spelling of 222276 in words is "two hundred twenty-two thousand, two hundred seventy-six".