12224043213 has 4 divisors (see below), whose sum is σ = 16298724288. Its totient is φ = 8149362140.

The previous prime is 12224043203. The next prime is 12224043317. The reversal of 12224043213 is 31234042221.

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 a de Polignac number, because none of the positive numbers 2^k-12224043213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12224043203) 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, 2037340533 + ... + 2037340538.

It is an arithmetic number, because the mean of its divisors is an integer number (4074681072).

Almost surely, 2^12224043213 is an apocalyptic number.

It is an amenable number.

12224043213 is a deficient number, since it is larger than the sum of its proper divisors (4074681075).

12224043213 is an equidigital number, since it uses as much as digits as its factorization.

12224043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4074681074.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12224043213 its reverse (31234042221), we get a palindrome (43458085434).

The spelling of 12224043213 in words is "twelve billion, two hundred twenty-four million, forty-three thousand, two hundred thirteen".