12231021499 has 2 divisors, whose sum is σ = 12231021500. Its totient is φ = 12231021498.

The previous prime is 12231021493. The next prime is 12231021533. The reversal of 12231021499 is 99412013221.

It is an a-pointer prime, because the next prime (12231021533) can be obtained adding 12231021499 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12231021499 - 2³¹ = 10083537851 is a prime.

It is not a weakly prime, because it can be changed into another prime (12231021493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6115510749 + 6115510750.

It is an arithmetic number, because the mean of its divisors is an integer number (6115510750).

Almost surely, 2^12231021499 is an apocalyptic number.

12231021499 is a deficient number, since it is larger than the sum of its proper divisors (1).

12231021499 is an equidigital number, since it uses as much as digits as its factorization.

12231021499 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 12231021499 in words is "twelve billion, two hundred thirty-one million, twenty-one thousand, four hundred ninety-nine".