12111210220201 has 2 divisors, whose sum is σ = 12111210220202. Its totient is φ = 12111210220200.

The previous prime is 12111210220159. The next prime is 12111210220237. The reversal of 12111210220201 is 10202201211121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11670586418176 + 440623802025 = 3416224^2 + 663795^2 .

It is a cyclic number.

It is not a de Polignac number, because 12111210220201 - 2³⁵ = 12076850481833 is a prime.

It is not a weakly prime, because it can be changed into another prime (12111210220271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6055605110100 + 6055605110101.

It is an arithmetic number, because the mean of its divisors is an integer number (6055605110101).

Almost surely, 2^{12111210220201} is an apocalyptic number.

It is an amenable number.

12111210220201 is a deficient number, since it is larger than the sum of its proper divisors (1).

12111210220201 is an equidigital number, since it uses as much as digits as its factorization.

12111210220201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12111210220201 its reverse (10202201211121), we get a palindrome (22313411431322).

The spelling of 12111210220201 in words is "twelve trillion, one hundred eleven billion, two hundred ten million, two hundred twenty thousand, two hundred one".