232212213 has 12 divisors (see below), whose sum is σ = 335597548. Its totient is φ = 154725120.

The previous prime is 232212203. The next prime is 232212221. The reversal of 232212213 is 312212232.

It can be written as a sum of positive squares in 2 ways, for example, as 118853604 + 113358609 = 10902^2 + 10647^2 .

It is not a de Polignac number, because 232212213 - 2⁸ = 232211957 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (232212203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 14181 + ... + 25797.

Almost surely, 2^232212213 is an apocalyptic number.

It is an amenable number.

232212213 is a deficient number, since it is larger than the sum of its proper divisors (103385335).

232212213 is a wasteful number, since it uses less digits than its factorization.

232212213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13844 (or 13841 counting only the distinct ones).

The product of its digits is 288, while the sum is 18.

The square root of 232212213 is about 15238.5108524422. The cubic root of 232212213 is about 614.6506602172.

Adding to 232212213 its reverse (312212232), we get a palindrome (544424445).

It can be divided in two parts, 2322 and 12213, that added together give a triangular number (14535 = T₁₇₀).

The spelling of 232212213 in words is "two hundred thirty-two million, two hundred twelve thousand, two hundred thirteen".