11212313201 has 2 divisors, whose sum is σ = 11212313202. Its totient is φ = 11212313200.

The previous prime is 11212313197. The next prime is 11212313221. The reversal of 11212313201 is 10231321211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11011354225 + 200958976 = 104935^2 + 14176^2 .

It is a cyclic number.

It is not a de Polignac number, because 11212313201 - 2² = 11212313197 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 11212313201.

It is not a weakly prime, because it can be changed into another prime (11212313221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5606156600 + 5606156601.

It is an arithmetic number, because the mean of its divisors is an integer number (5606156601).

Almost surely, 2^11212313201 is an apocalyptic number.

It is an amenable number.

11212313201 is a deficient number, since it is larger than the sum of its proper divisors (1).

11212313201 is an equidigital number, since it uses as much as digits as its factorization.

11212313201 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11212313201 its reverse (10231321211), we get a palindrome (21443634412).

It can be divided in two parts, 11 and 212313201, that added together give a palindrome (212313212).

The spelling of 11212313201 in words is "eleven billion, two hundred twelve million, three hundred thirteen thousand, two hundred one".