12221202199979 has 2 divisors, whose sum is σ = 12221202199980. Its totient is φ = 12221202199978.

The previous prime is 12221202199967. The next prime is 12221202200047. The reversal of 12221202199979 is 97999120212221.

It is a weak prime.

It is an emirp because it is prime and its reverse (97999120212221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221202199979 - 2¹² = 12221202195883 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221202199949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110601099989 + 6110601099990.

It is an arithmetic number, because the mean of its divisors is an integer number (6110601099990).

Almost surely, 2^{12221202199979} is an apocalyptic number.

12221202199979 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221202199979 is an equidigital number, since it uses as much as digits as its factorization.

12221202199979 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1469664, while the sum is 56.

The spelling of 12221202199979 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred ninety-nine thousand, nine hundred seventy-nine".