11012211212201 has 2 divisors, whose sum is σ = 11012211212202. Its totient is φ = 11012211212200.

The previous prime is 11012211212153. The next prime is 11012211212203. The reversal of 11012211212201 is 10221211221011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7268141010601 + 3744070201600 = 2695949^2 + 1934960^2 .

It is a cyclic number.

It is not a de Polignac number, because 11012211212201 - 2³⁴ = 10995031343017 is a prime.

Together with 11012211212203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11012211212201.

It is not a weakly prime, because it can be changed into another prime (11012211212203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506105606100 + 5506105606101.

It is an arithmetic number, because the mean of its divisors is an integer number (5506105606101).

Almost surely, 2^{11012211212201} is an apocalyptic number.

It is an amenable number.

11012211212201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012211212201 is an equidigital number, since it uses as much as digits as its factorization.

11012211212201 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 17.

Adding to 11012211212201 its reverse (10221211221011), we get a palindrome (21233422433212).

The spelling of 11012211212201 in words is "eleven trillion, twelve billion, two hundred eleven million, two hundred twelve thousand, two hundred one".