12221018323 has 2 divisors, whose sum is σ = 12221018324. Its totient is φ = 12221018322.

The previous prime is 12221018321. The next prime is 12221018339. The reversal of 12221018323 is 32381012221.

It is a weak prime.

It is an emirp because it is prime and its reverse (32381012221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221018323 - 2¹ = 12221018321 is a prime.

It is a super-2 number, since 2×12221018323² (a number of 21 digits) contains 22 as substring.

Together with 12221018321, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (12221018321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110509161 + 6110509162.

It is an arithmetic number, because the mean of its divisors is an integer number (6110509162).

Almost surely, 2^12221018323 is an apocalyptic number.

12221018323 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221018323 is an equidigital number, since it uses as much as digits as its factorization.

12221018323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The spelling of 12221018323 in words is "twelve billion, two hundred twenty-one million, eighteen thousand, three hundred twenty-three".