12210322391 has 2 divisors, whose sum is σ = 12210322392. Its totient is φ = 12210322390.

The previous prime is 12210322379. The next prime is 12210322433. The reversal of 12210322391 is 19322301221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12210322391 - 2²⁶ = 12143213527 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12210322391.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12210322331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6105161195 + 6105161196.

It is an arithmetic number, because the mean of its divisors is an integer number (6105161196).

Almost surely, 2^12210322391 is an apocalyptic number.

12210322391 is a deficient number, since it is larger than the sum of its proper divisors (1).

12210322391 is an equidigital number, since it uses as much as digits as its factorization.

12210322391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12210322391 in words is "twelve billion, two hundred ten million, three hundred twenty-two thousand, three hundred ninety-one".