222635 has 8 divisors (see below), whose sum is σ = 305376. Its totient is φ = 152640.

The previous prime is 222619. The next prime is 222643. The reversal of 222635 is 536222.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 222635 - 2⁴ = 222619 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 3146 + ... + 3215.

It is an arithmetic number, because the mean of its divisors is an integer number (38172).

2²²²⁶³⁵ is an apocalyptic number.

222635 is a deficient number, since it is larger than the sum of its proper divisors (82741).

222635 is an equidigital number, since it uses as much as digits as its factorization.

222635 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373.

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

The square root of 222635 is about 471.8421346171. The cubic root of 222635 is about 60.6081665809.

Adding to 222635 its reverse (536222), we get a palindrome (758857).

It can be divided in two parts, 22 and 2635, that multiplied together give a triangular number (57970 = T₃₄₀).

The spelling of 222635 in words is "two hundred twenty-two thousand, six hundred thirty-five".