12221202120109 has 2 divisors, whose sum is σ = 12221202120110. Its totient is φ = 12221202120108.

The previous prime is 12221202120019. The next prime is 12221202120133. The reversal of 12221202120109 is 90102120212221.

It is a happy number.

Together with previous prime (12221202120019) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10364877619209 + 1856324500900 = 3219453^2 + 1362470^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221202120109 - 2³¹ = 12219054636461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12221202120139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6110601060054 + 6110601060055.

It is an arithmetic number, because the mean of its divisors is an integer number (6110601060055).

Almost surely, 2^{12221202120109} is an apocalyptic number.

It is an amenable number.

12221202120109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12221202120109 is an equidigital number, since it uses as much as digits as its factorization.

12221202120109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 12221202120109 in words is "twelve trillion, two hundred twenty-one billion, two hundred two million, one hundred twenty thousand, one hundred nine".