11211201122227 has 2 divisors, whose sum is σ = 11211201122228. Its totient is φ = 11211201122226.

The previous prime is 11211201122189. The next prime is 11211201122267. The reversal of 11211201122227 is 72222110211211.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (72222110211211) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11211201122227 - 2¹⁹ = 11211200597939 is a prime.

It is not a weakly prime, because it can be changed into another prime (11211201122267) 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, 5605600561113 + 5605600561114.

It is an arithmetic number, because the mean of its divisors is an integer number (5605600561114).

Almost surely, 2^{11211201122227} is an apocalyptic number.

11211201122227 is a deficient number, since it is larger than the sum of its proper divisors (1).

11211201122227 is an equidigital number, since it uses as much as digits as its factorization.

11211201122227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 448, while the sum is 25.

Adding to 11211201122227 its reverse (72222110211211), we get a palindrome (83433311333438).

The spelling of 11211201122227 in words is "eleven trillion, two hundred eleven billion, two hundred one million, one hundred twenty-two thousand, two hundred twenty-seven".