11122223455687 has 2 divisors, whose sum is σ = 11122223455688. Its totient is φ = 11122223455686.

The previous prime is 11122223455667. The next prime is 11122223455709. The reversal of 11122223455687 is 78655432222111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11122223455687 - 2¹¹ = 11122223453639 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11122223455687.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11122223455627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561111727843 + 5561111727844.

It is an arithmetic number, because the mean of its divisors is an integer number (5561111727844).

Almost surely, 2^{11122223455687} is an apocalyptic number.

11122223455687 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122223455687 is an equidigital number, since it uses as much as digits as its factorization.

11122223455687 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1612800, while the sum is 49.

Adding to 11122223455687 its reverse (78655432222111), we get a palindrome (89777655677798).

The spelling of 11122223455687 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-three million, four hundred fifty-five thousand, six hundred eighty-seven".