11110310221 has 2 divisors, whose sum is σ = 11110310222. Its totient is φ = 11110310220.

The previous prime is 11110310209. The next prime is 11110310231. The reversal of 11110310221 is 12201301111.

It is a happy number.

11110310221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10997716900 + 112593321 = 104870^2 + 10611^2 .

It is an emirp because it is prime and its reverse (12201301111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11110310221 - 2¹¹ = 11110308173 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11110310231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555155110 + 5555155111.

It is an arithmetic number, because the mean of its divisors is an integer number (5555155111).

Almost surely, 2^11110310221 is an apocalyptic number.

It is an amenable number.

11110310221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11110310221 is an equidigital number, since it uses as much as digits as its factorization.

11110310221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 11110310221 its reverse (12201301111), we get a palindrome (23311611332).

The spelling of 11110310221 in words is "eleven billion, one hundred ten million, three hundred ten thousand, two hundred twenty-one".