12021322699 has 2 divisors, whose sum is σ = 12021322700. Its totient is φ = 12021322698.

The previous prime is 12021322601. The next prime is 12021322723. The reversal of 12021322699 is 99622312021.

It is a strong prime.

It is an emirp because it is prime and its reverse (99622312021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12021322699 - 2¹¹ = 12021320651 is a prime.

It is not a weakly prime, because it can be changed into another prime (12021322199) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010661349 + 6010661350.

It is an arithmetic number, because the mean of its divisors is an integer number (6010661350).

Almost surely, 2^12021322699 is an apocalyptic number.

12021322699 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021322699 is an equidigital number, since it uses as much as digits as its factorization.

12021322699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 37.

It can be divided in two parts, 12021322 and 699, that added together give a palindrome (12022021).

The spelling of 12021322699 in words is "twelve billion, twenty-one million, three hundred twenty-two thousand, six hundred ninety-nine".