222636223 has 2 divisors, whose sum is σ = 222636224. Its totient is φ = 222636222.

The previous prime is 222636209. The next prime is 222636263. The reversal of 222636223 is 322636222.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 222636223 - 2²¹ = 220539071 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 222636191 and 222636200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (222636263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111318111 + 111318112.

It is an arithmetic number, because the mean of its divisors is an integer number (111318112).

Almost surely, 2^222636223 is an apocalyptic number.

222636223 is a deficient number, since it is larger than the sum of its proper divisors (1).

222636223 is an equidigital number, since it uses as much as digits as its factorization.

222636223 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10368, while the sum is 28.

The square root of 222636223 is about 14920.9993968233. Note that the first 3 decimals coincide. The cubic root of 222636223 is about 606.0827756019.

Subtracting 222636223 from its reverse (322636222), we obtain a palindrome (99999999).

The spelling of 222636223 in words is "two hundred twenty-two million, six hundred thirty-six thousand, two hundred twenty-three".