222706 has 16 divisors (see below), whose sum is σ = 373248. Its totient is φ = 98800.

The previous prime is 222679. The next prime is 222707. The reversal of 222706 is 607222.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (222707) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1071 + ... + 1261.

It is an arithmetic number, because the mean of its divisors is an integer number (23328).

2²²²⁷⁰⁶ is an apocalyptic number.

222706 is a deficient number, since it is larger than the sum of its proper divisors (150542).

222706 is a wasteful number, since it uses less digits than its factorization.

222706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257.

The product of its (nonzero) digits is 336, while the sum is 19.

The square root of 222706 is about 471.9173656478. The cubic root of 222706 is about 60.6146086983.

Adding to 222706 its reverse (607222), we get a palindrome (829928).

The spelling of 222706 in words is "two hundred twenty-two thousand, seven hundred six".