11220000111 has 6 divisors (see below), whose sum is σ = 16206666840. Its totient is φ = 7480000068.

The previous prime is 11220000109. The next prime is 11220000151. The reversal of 11220000111 is 11100002211.

It is a happy number.

It is not a de Polignac number, because 11220000111 - 2¹ = 11220000109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 1246666679 = 11220000111 / (1 + 1 + 2 + 2 + 0 + 0 + 0 + 0 + 1 + 1 + 1).

It is a zygodrome in base 10.

It is a junction number, because it is equal to n+sod(n) for n = 11220000093 and 11220000102.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220000101) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 623333331 + ... + 623333348.

It is an arithmetic number, because the mean of its divisors is an integer number (2701111140).

Almost surely, 2^11220000111 is an apocalyptic number.

11220000111 is a deficient number, since it is larger than the sum of its proper divisors (4986666729).

11220000111 is a wasteful number, since it uses less digits than its factorization.

11220000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1246666685 (or 1246666682 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 11220000111 its reverse (11100002211), we get a palindrome (22320002322).

The spelling of 11220000111 in words is "eleven billion, two hundred twenty million, one hundred eleven", and thus it is an aban number.