12021221299 has 2 divisors, whose sum is σ = 12021221300. Its totient is φ = 12021221298.

The previous prime is 12021221297. The next prime is 12021221351. The reversal of 12021221299 is 99212212021.

12021221299 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12021221299 - 2¹ = 12021221297 is a prime.

Together with 12021221297, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12021221299.

It is not a weakly prime, because it can be changed into another prime (12021221297) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010610649 + 6010610650.

It is an arithmetic number, because the mean of its divisors is an integer number (6010610650).

Almost surely, 2^12021221299 is an apocalyptic number.

12021221299 is a deficient number, since it is larger than the sum of its proper divisors (1).

12021221299 is an equidigital number, since it uses as much as digits as its factorization.

12021221299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 31.

The spelling of 12021221299 in words is "twelve billion, twenty-one million, two hundred twenty-one thousand, two hundred ninety-nine".