12224443013 has 2 divisors, whose sum is σ = 12224443014. Its totient is φ = 12224443012.

The previous prime is 12224443009. The next prime is 12224443037. The reversal of 12224443013 is 31034442221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7977705124 + 4246737889 = 89318^2 + 65167^2 .

It is a cyclic number.

It is not a de Polignac number, because 12224443013 - 2² = 12224443009 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12224443043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6112221506 + 6112221507.

It is an arithmetic number, because the mean of its divisors is an integer number (6112221507).

Almost surely, 2^12224443013 is an apocalyptic number.

It is an amenable number.

12224443013 is a deficient number, since it is larger than the sum of its proper divisors (1).

12224443013 is an equidigital number, since it uses as much as digits as its factorization.

12224443013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 12224443013 its reverse (31034442221), we get a palindrome (43258885234).

The spelling of 12224443013 in words is "twelve billion, two hundred twenty-four million, four hundred forty-three thousand, thirteen".