213233211 has 6 divisors (see below), whose sum is σ = 308003540. Its totient is φ = 142155468.

The previous prime is 213233203. The next prime is 213233233. The reversal of 213233211 is 112332312.

213233211 is a `hidden beast` number, since 21 + 323 + 321 + 1 = 666.

It is not a de Polignac number, because 213233211 - 2³ = 213233203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213233281) 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 5 ways as a sum of consecutive naturals, for example, 11846281 + ... + 11846298.

Almost surely, 2^213233211 is an apocalyptic number.

213233211 is a deficient number, since it is larger than the sum of its proper divisors (94770329).

213233211 is a wasteful number, since it uses less digits than its factorization.

213233211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23692585 (or 23692582 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 213233211 is about 14602.5070107841. The cubic root of 213233211 is about 597.4271414344.

Adding to 213233211 its reverse (112332312), we get a palindrome (325565523).

It can be divided in two parts, 213233 and 211, that added together give a square (213444 = 462²).

The spelling of 213233211 in words is "two hundred thirteen million, two hundred thirty-three thousand, two hundred eleven".