11122012511 has 2 divisors, whose sum is σ = 11122012512. Its totient is φ = 11122012510.

The previous prime is 11122012487. The next prime is 11122012513. The reversal of 11122012511 is 11521022111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11122012511 - 2¹⁰ = 11122011487 is a prime.

Together with 11122012513, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11122012511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122012513) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561006255 + 5561006256.

It is an arithmetic number, because the mean of its divisors is an integer number (5561006256).

Almost surely, 2^11122012511 is an apocalyptic number.

11122012511 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122012511 is an equidigital number, since it uses as much as digits as its factorization.

11122012511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 11122012511 its reverse (11521022111), we get a palindrome (22643034622).

The spelling of 11122012511 in words is "eleven billion, one hundred twenty-two million, twelve thousand, five hundred eleven".