212234211 has 24 divisors (see below), whose sum is σ = 354798080. Its totient is φ = 119738736.

The previous prime is 212234177. The next prime is 212234219. The reversal of 212234211 is 112432212.

It is a happy number.

212234211 is a `hidden beast` number, since 21 + 223 + 421 + 1 = 666.

It is not a de Polignac number, because 212234211 - 2⁷ = 212234083 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212234219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16345 + ... + 26298.

Almost surely, 2^212234211 is an apocalyptic number.

212234211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

212234211 is a deficient number, since it is larger than the sum of its proper divisors (142563869).

212234211 is a wasteful number, since it uses less digits than its factorization.

212234211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42735 (or 42732 counting only the distinct ones).

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

The square root of 212234211 is about 14568.2603971785. The cubic root of 212234211 is about 596.4926963162.

Adding to 212234211 its reverse (112432212), we get a palindrome (324666423).

The spelling of 212234211 in words is "two hundred twelve million, two hundred thirty-four thousand, two hundred eleven".