213422211 has 6 divisors (see below), whose sum is σ = 308276540. Its totient is φ = 142281468.

The previous prime is 213422177. The next prime is 213422239. The reversal of 213422211 is 112224312.

It is a happy number.

It is not a de Polignac number, because 213422211 - 2⁶ = 213422147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213422291) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 11856781 + ... + 11856798.

Almost surely, 2^213422211 is an apocalyptic number.

213422211 is a deficient number, since it is larger than the sum of its proper divisors (94854329).

213422211 is a wasteful number, since it uses less digits than its factorization.

213422211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23713585 (or 23713582 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 213422211 is about 14608.9770689121. The cubic root of 213422211 is about 597.6035998530.

Adding to 213422211 its reverse (112224312), we get a palindrome (325646523).

The spelling of 213422211 in words is "two hundred thirteen million, four hundred twenty-two thousand, two hundred eleven".