11012201221211 has 2 divisors, whose sum is σ = 11012201221212. Its totient is φ = 11012201221210.

The previous prime is 11012201221207. The next prime is 11012201221237. The reversal of 11012201221211 is 11212210221011.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11012201221211 - 2² = 11012201221207 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11012201221211.

It is not a weakly prime, because it can be changed into another prime (11012201221271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506100610605 + 5506100610606.

It is an arithmetic number, because the mean of its divisors is an integer number (5506100610606).

Almost surely, 2^{11012201221211} is an apocalyptic number.

11012201221211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012201221211 is an equidigital number, since it uses as much as digits as its factorization.

11012201221211 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 11012201221211 its reverse (11212210221011), we get a palindrome (22224411442222).

The spelling of 11012201221211 in words is "eleven trillion, twelve billion, two hundred one million, two hundred twenty-one thousand, two hundred eleven".