222356 has 6 divisors (see below), whose sum is σ = 389130. Its totient is φ = 111176.

The previous prime is 222349. The next prime is 222361. The reversal of 222356 is 653222.

It is a happy number.

222356 is nontrivially palindromic in base 7.

It can be written as a sum of positive squares in only one way, i.e., 122500 + 99856 = 350^2 + 316^2 .

It is a plaindrome in base 10.

It is a congruent number.

It is an unprimeable number.

222356 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, 27791 + ... + 27798.

It is an arithmetic number, because the mean of its divisors is an integer number (64855).

2²²²³⁵⁶ is an apocalyptic number.

It is an amenable number.

222356 is a deficient number, since it is larger than the sum of its proper divisors (166774).

222356 is a wasteful number, since it uses less digits than its factorization.

222356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55593 (or 55591 counting only the distinct ones).

The product of its digits is 720, while the sum is 20.

The square root of 222356 is about 471.5463922034. The cubic root of 222356 is about 60.5828385073.

Adding to 222356 its reverse (653222), we get a palindrome (875578).

The spelling of 222356 in words is "two hundred twenty-two thousand, three hundred fifty-six".