11121102217 has 2 divisors, whose sum is σ = 11121102218. Its totient is φ = 11121102216.

The previous prime is 11121102193. The next prime is 11121102229. The reversal of 11121102217 is 71220112111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5949191161 + 5171911056 = 77131^2 + 71916^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121102217 - 2¹¹ = 11121100169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121102194 and 11121102203.

It is not a weakly prime, because it can be changed into another prime (11121102257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560551108 + 5560551109.

It is an arithmetic number, because the mean of its divisors is an integer number (5560551109).

Almost surely, 2^11121102217 is an apocalyptic number.

It is an amenable number.

11121102217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121102217 is an equidigital number, since it uses as much as digits as its factorization.

11121102217 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 19.

Adding to 11121102217 its reverse (71220112111), we get a palindrome (82341214328).

The spelling of 11121102217 in words is "eleven billion, one hundred twenty-one million, one hundred two thousand, two hundred seventeen".