222304211 has 2 divisors, whose sum is σ = 222304212. Its totient is φ = 222304210.

The previous prime is 222304157. The next prime is 222304213. The reversal of 222304211 is 112403222.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222304211 - 2²² = 218109907 is a prime.

Together with 222304213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 222304211.

It is not a weakly prime, because it can be changed into another prime (222304213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111152105 + 111152106.

It is an arithmetic number, because the mean of its divisors is an integer number (111152106).

Almost surely, 2^222304211 is an apocalyptic number.

222304211 is a deficient number, since it is larger than the sum of its proper divisors (1).

222304211 is an equidigital number, since it uses as much as digits as its factorization.

222304211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 222304211 is about 14909.8695836013. The cubic root of 222304211 is about 605.7813468663.

Adding to 222304211 its reverse (112403222), we get a palindrome (334707433).

The spelling of 222304211 in words is "two hundred twenty-two million, three hundred four thousand, two hundred eleven".