213322211 has 2 divisors, whose sum is σ = 213322212. Its totient is φ = 213322210.

The previous prime is 213322189. The next prime is 213322223. The reversal of 213322211 is 112223312.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 213322211 - 2⁶ = 213322147 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213322211.

It is not a weakly prime, because it can be changed into another prime (213322261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106661105 + 106661106.

It is an arithmetic number, because the mean of its divisors is an integer number (106661106).

Almost surely, 2^213322211 is an apocalyptic number.

213322211 is a deficient number, since it is larger than the sum of its proper divisors (1).

213322211 is an equidigital number, since it uses as much as digits as its factorization.

213322211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 144, while the sum is 17.

The square root of 213322211 is about 14605.5541147880. The cubic root of 213322211 is about 597.5102485944.

Adding to 213322211 its reverse (112223312), we get a palindrome (325545523).

The spelling of 213322211 in words is "two hundred thirteen million, three hundred twenty-two thousand, two hundred eleven".