12001201122109 has 2 divisors, whose sum is σ = 12001201122110. Its totient is φ = 12001201122108.

The previous prime is 12001201122103. The next prime is 12001201122121. The reversal of 12001201122109 is 90122110210021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10588483460025 + 1412717662084 = 3253995^2 + 1188578^2 .

It is a cyclic number.

It is not a de Polignac number, because 12001201122109 - 2³ = 12001201122101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12001201122109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001201122101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000600561054 + 6000600561055.

It is an arithmetic number, because the mean of its divisors is an integer number (6000600561055).

Almost surely, 2^{12001201122109} is an apocalyptic number.

It is an amenable number.

12001201122109 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001201122109 is an equidigital number, since it uses as much as digits as its factorization.

12001201122109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 12001201122109 in words is "twelve trillion, one billion, two hundred one million, one hundred twenty-two thousand, one hundred nine".