1121220112211 has 2 divisors, whose sum is σ = 1121220112212. Its totient is φ = 1121220112210.

The previous prime is 1121220112163. The next prime is 1121220112219. The reversal of 1121220112211 is 1122110221211.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1121220112211 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1121220112211.

It is not a weakly prime, because it can be changed into another prime (1121220112219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560610056105 + 560610056106.

It is an arithmetic number, because the mean of its divisors is an integer number (560610056106).

Almost surely, 2^{1121220112211} is an apocalyptic number.

1121220112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121220112211 is an equidigital number, since it uses as much as digits as its factorization.

1121220112211 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 1121220112211 its reverse (1122110221211), we get a palindrome (2243330333422).

The spelling of 1121220112211 in words is "one trillion, one hundred twenty-one billion, two hundred twenty million, one hundred twelve thousand, two hundred eleven".