12223321213 has 2 divisors, whose sum is σ = 12223321214. Its totient is φ = 12223321212.

The previous prime is 12223321211. The next prime is 12223321247. The reversal of 12223321213 is 31212332221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7582578084 + 4640743129 = 87078^2 + 68123^2 .

It is a cyclic number.

It is not a de Polignac number, because 12223321213 - 2¹ = 12223321211 is a prime.

Together with 12223321211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12223321211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6111660606 + 6111660607.

It is an arithmetic number, because the mean of its divisors is an integer number (6111660607).

Almost surely, 2^12223321213 is an apocalyptic number.

It is an amenable number.

12223321213 is a deficient number, since it is larger than the sum of its proper divisors (1).

12223321213 is an equidigital number, since it uses as much as digits as its factorization.

12223321213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 864, while the sum is 22.

Adding to 12223321213 its reverse (31212332221), we get a palindrome (43435653434).

The spelling of 12223321213 in words is "twelve billion, two hundred twenty-three million, three hundred twenty-one thousand, two hundred thirteen".