12230213019991 has 2 divisors, whose sum is σ = 12230213019992. Its totient is φ = 12230213019990.

The previous prime is 12230213019989. The next prime is 12230213020027. The reversal of 12230213019991 is 19991031203221.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12230213019991 - 2¹ = 12230213019989 is a prime.

It is a super-4 number, since 4×12230213019991⁴ (a number of 53 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

Together with 12230213019989, 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 (12230213019901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115106509995 + 6115106509996.

It is an arithmetic number, because the mean of its divisors is an integer number (6115106509996).

Almost surely, 2^{12230213019991} is an apocalyptic number.

12230213019991 is a deficient number, since it is larger than the sum of its proper divisors (1).

12230213019991 is an equidigital number, since it uses as much as digits as its factorization.

12230213019991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 52488, while the sum is 43.

The spelling of 12230213019991 in words is "twelve trillion, two hundred thirty billion, two hundred thirteen million, nineteen thousand, nine hundred ninety-one".