212342211 has 6 divisors (see below), whose sum is σ = 306716540. Its totient is φ = 141561468.

The previous prime is 212342209. The next prime is 212342237. The reversal of 212342211 is 112243212.

It is a happy number.

It is not a de Polignac number, because 212342211 - 2¹ = 212342209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212342201) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11796781 + ... + 11796798.

Almost surely, 2^212342211 is an apocalyptic number.

212342211 is a deficient number, since it is larger than the sum of its proper divisors (94374329).

212342211 is a wasteful number, since it uses less digits than its factorization.

212342211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23593585 (or 23593582 counting only the distinct ones).

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

The square root of 212342211 is about 14571.9666140161. The cubic root of 212342211 is about 596.5938585913.

Adding to 212342211 its reverse (112243212), we get a palindrome (324585423).

The spelling of 212342211 in words is "two hundred twelve million, three hundred forty-two thousand, two hundred eleven".