222232213211 has 2 divisors, whose sum is σ = 222232213212. Its totient is φ = 222232213210.

The previous prime is 222232213207. The next prime is 222232213213. The reversal of 222232213211 is 112312232222.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 222232213211 - 2² = 222232213207 is a prime.

Together with 222232213213, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (222232213213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111116106605 + 111116106606.

It is an arithmetic number, because the mean of its divisors is an integer number (111116106606).

Almost surely, 2^222232213211 is an apocalyptic number.

222232213211 is a deficient number, since it is larger than the sum of its proper divisors (1).

222232213211 is an equidigital number, since it uses as much as digits as its factorization.

222232213211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1152, while the sum is 23.

Adding to 222232213211 its reverse (112312232222), we get a palindrome (334544445433).

The spelling of 222232213211 in words is "two hundred twenty-two billion, two hundred thirty-two million, two hundred thirteen thousand, two hundred eleven".