11220111121103 has 2 divisors, whose sum is σ = 11220111121104. Its totient is φ = 11220111121102.

The previous prime is 11220111121099. The next prime is 11220111121151. The reversal of 11220111121103 is 30112111102211.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11220111121103 - 2² = 11220111121099 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11220111121003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610055560551 + 5610055560552.

It is an arithmetic number, because the mean of its divisors is an integer number (5610055560552).

Almost surely, 2^{11220111121103} is an apocalyptic number.

11220111121103 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220111121103 is an equidigital number, since it uses as much as digits as its factorization.

11220111121103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 17.

Adding to 11220111121103 its reverse (30112111102211), we get a palindrome (41332222223314).

The spelling of 11220111121103 in words is "eleven trillion, two hundred twenty billion, one hundred eleven million, one hundred twenty-one thousand, one hundred three".