12234213213 has 4 divisors (see below), whose sum is σ = 16312284288. Its totient is φ = 8156142140.

The previous prime is 12234213203. The next prime is 12234213227. The reversal of 12234213213 is 31231243221.

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, and also an emirpimes, since its reverse is a distinct semiprime: 31231243221 = 3 ⋅10410414407.

It is a cyclic number.

It is not a de Polignac number, because 12234213213 - 2⁵ = 12234213181 is a prime.

It is a super-2 number, since 2×12234213213² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12234213203) 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, 2039035533 + ... + 2039035538.

It is an arithmetic number, because the mean of its divisors is an integer number (4078071072).

Almost surely, 2^12234213213 is an apocalyptic number.

It is an amenable number.

12234213213 is a deficient number, since it is larger than the sum of its proper divisors (4078071075).

12234213213 is an equidigital number, since it uses as much as digits as its factorization.

12234213213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4078071074.

The product of its digits is 1728, while the sum is 24.

Adding to 12234213213 its reverse (31231243221), we get a palindrome (43465456434).

The spelling of 12234213213 in words is "twelve billion, two hundred thirty-four million, two hundred thirteen thousand, two hundred thirteen".