12320221211 has 2 divisors, whose sum is σ = 12320221212. Its totient is φ = 12320221210.

The previous prime is 12320221201. The next prime is 12320221213. The reversal of 12320221211 is 11212202321.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12320221211 is a prime.

It is a Sophie Germain prime.

Together with 12320221213, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12320221211.

It is not a weakly prime, because it can be changed into another prime (12320221213) 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, 6160110605 + 6160110606.

It is an arithmetic number, because the mean of its divisors is an integer number (6160110606).

Almost surely, 2^12320221211 is an apocalyptic number.

12320221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320221211 is an equidigital number, since it uses as much as digits as its factorization.

12320221211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12320221211 its reverse (11212202321), we get a palindrome (23532423532).

The spelling of 12320221211 in words is "twelve billion, three hundred twenty million, two hundred twenty-one thousand, two hundred eleven".