121201102001209 has 2 divisors, whose sum is σ = 121201102001210. Its totient is φ = 121201102001208.

The previous prime is 121201102001137. The next prime is 121201102001263. The reversal of 121201102001209 is 902100201102121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 117375447660025 + 3825654341184 = 10833995^2 + 1955928^2 .

It is a cyclic number.

It is not a de Polignac number, because 121201102001209 - 2⁷ = 121201102001081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 121201102001209.

It is not a weakly prime, because it can be changed into another prime (121201102005209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60600551000604 + 60600551000605.

It is an arithmetic number, because the mean of its divisors is an integer number (60600551000605).

Almost surely, 2^{121201102001209} is an apocalyptic number.

It is an amenable number.

121201102001209 is a deficient number, since it is larger than the sum of its proper divisors (1).

121201102001209 is an equidigital number, since it uses as much as digits as its factorization.

121201102001209 is an odious number, because the sum of its binary digits is odd.

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

The spelling of 121201102001209 in words is "one hundred twenty-one trillion, two hundred one billion, one hundred two million, one thousand, two hundred nine".