12221121202099 has 2 divisors, whose sum is σ = 12221121202100. Its totient is φ = 12221121202098.

The previous prime is 12221121202093. The next prime is 12221121202117. The reversal of 12221121202099 is 99020212112221.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (99020212112221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12221121202099 - 2¹⁹ = 12221120677811 is a prime.

It is not a weakly prime, because it can be changed into another prime (12221121202093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110560601049 + 6110560601050.

It is an arithmetic number, because the mean of its divisors is an integer number (6110560601050).

Almost surely, 2^{12221121202099} is an apocalyptic number.

12221121202099 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221121202099 is an equidigital number, since it uses as much as digits as its factorization.

12221121202099 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 12221121202099 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-one million, two hundred two thousand, ninety-nine".