11111122000111 has 24 divisors (see below), whose sum is σ = 12982126622256. Its totient is φ = 9481917432960.

The previous prime is 11111122000109. The next prime is 11111122000127. The reversal of 11111122000111 is 11100022111111.

It is not a de Polignac number, because 11111122000111 - 2¹ = 11111122000109 is a prime.

It is a Duffinian number.

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11111122000091 and 11111122000100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11111122060111) 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 in 23 ways as a sum of consecutive naturals, for example, 16003885 + ... + 16683721.

It is an arithmetic number, because the mean of its divisors is an integer number (540921942594).

Almost surely, 2^{11111122000111} is an apocalyptic number.

11111122000111 is a deficient number, since it is larger than the sum of its proper divisors (1871004622145).

11111122000111 is a wasteful number, since it uses less digits than its factorization.

11111122000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681319 (or 681312 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 13.

Adding to 11111122000111 its reverse (11100022111111), we get a palindrome (22211144111222).

The spelling of 11111122000111 in words is "eleven trillion, one hundred eleven billion, one hundred twenty-two million, one hundred eleven", and thus it is an aban number.