122220001100209 has 2 divisors, whose sum is σ = 122220001100210. Its totient is φ = 122220001100208.

The previous prime is 122220001100051. The next prime is 122220001100221. The reversal of 122220001100209 is 902001100022221.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87700228225600 + 34519772874609 = 9364840^2 + 5875353^2 .

It is a cyclic number.

It is not a de Polignac number, because 122220001100209 - 2¹¹ = 122220001098161 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 122220001100209.

It is not a weakly prime, because it can be changed into another prime (122220001100809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61110000550104 + 61110000550105.

It is an arithmetic number, because the mean of its divisors is an integer number (61110000550105).

Almost surely, 2^{122220001100209} is an apocalyptic number.

It is an amenable number.

122220001100209 is a deficient number, since it is larger than the sum of its proper divisors (1).

122220001100209 is an equidigital number, since it uses as much as digits as its factorization.

122220001100209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 22.

The spelling of 122220001100209 in words is "one hundred twenty-two trillion, two hundred twenty billion, one million, one hundred thousand, two hundred nine".