11212201112201 has 2 divisors, whose sum is σ = 11212201112202. Its totient is φ = 11212201112200.

The previous prime is 11212201112197. The next prime is 11212201112227. The reversal of 11212201112201 is 10221110221211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10881415092601 + 330786019600 = 3298699^2 + 575140^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212201112201 - 2² = 11212201112197 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 11212201112201.

It is not a weakly prime, because it can be changed into another prime (11212201112261) 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, 5606100556100 + 5606100556101.

It is an arithmetic number, because the mean of its divisors is an integer number (5606100556101).

Almost surely, 2^{11212201112201} is an apocalyptic number.

It is an amenable number.

11212201112201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212201112201 is an equidigital number, since it uses as much as digits as its factorization.

11212201112201 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 11212201112201 its reverse (10221110221211), we get a palindrome (21433311333412).

The spelling of 11212201112201 in words is "eleven trillion, two hundred twelve billion, two hundred one million, one hundred twelve thousand, two hundred one".