201122001212201 has 2 divisors, whose sum is σ = 201122001212202. Its totient is φ = 201122001212200.

The previous prime is 201122001212129. The next prime is 201122001212239. The reversal of 201122001212201 is 102212100221102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176972443003801 + 24149558208400 = 13303099^2 + 4914220^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201122001212201 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 201122001212201.

It is not a weakly prime, because it can be changed into another prime (201122001202201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100561000606100 + 100561000606101.

It is an arithmetic number, because the mean of its divisors is an integer number (100561000606101).

Almost surely, 2^{201122001212201} is an apocalyptic number.

It is an amenable number.

201122001212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

201122001212201 is an equidigital number, since it uses as much as digits as its factorization.

201122001212201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 201122001212201 its reverse (102212100221102), we get a palindrome (303334101433303).

The spelling of 201122001212201 in words is "two hundred one trillion, one hundred twenty-two billion, one million, two hundred twelve thousand, two hundred one".