12236213 has 4 divisors (see below), whose sum is σ = 13348608. Its totient is φ = 11123820.

The previous prime is 12236201. The next prime is 12236219. The reversal of 12236213 is 31263221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12236213 - 2⁴ = 12236197 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 (12236219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 556181 + ... + 556202.

It is an arithmetic number, because the mean of its divisors is an integer number (3337152).

Almost surely, 2^12236213 is an apocalyptic number.

It is an amenable number.

12236213 is a deficient number, since it is larger than the sum of its proper divisors (1112395).

12236213 is a wasteful number, since it uses less digits than its factorization.

12236213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1112394.

The product of its digits is 432, while the sum is 20.

The square root of 12236213 is about 3498.0298740863. The cubic root of 12236213 is about 230.4353003899.

Adding to 12236213 its reverse (31263221), we get a palindrome (43499434).

The spelling of 12236213 in words is "twelve million, two hundred thirty-six thousand, two hundred thirteen".