211121222227 has 2 divisors, whose sum is σ = 211121222228. Its totient is φ = 211121222226.

The previous prime is 211121222219. The next prime is 211121222239. The reversal of 211121222227 is 722222121112.

211121222227 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 211121222227 - 2³ = 211121222219 is a prime.

It is not a weakly prime, because it can be changed into another prime (211121222267) 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, 105560611113 + 105560611114.

It is an arithmetic number, because the mean of its divisors is an integer number (105560611114).

Almost surely, 2^211121222227 is an apocalyptic number.

211121222227 is a deficient number, since it is larger than the sum of its proper divisors (1).

211121222227 is an equidigital number, since it uses as much as digits as its factorization.

211121222227 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 896, while the sum is 25.

Adding to 211121222227 its reverse (722222121112), we get a palindrome (933343343339).

The spelling of 211121222227 in words is "two hundred eleven billion, one hundred twenty-one million, two hundred twenty-two thousand, two hundred twenty-seven".