11220306111 has 48 divisors (see below), whose sum is σ = 19350223200. Its totient is φ = 6407081856.

The previous prime is 11220306107. The next prime is 11220306121. The reversal of 11220306111 is 11160302211.

11220306111 is a `hidden beast` number, since 1 + 1 + 2 + 20 + 30 + 611 + 1 = 666.

11220306111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11220306111 - 2² = 11220306107 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11220306121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3052971 + ... + 3056643.

It is an arithmetic number, because the mean of its divisors is an integer number (403129650).

Almost surely, 2^11220306111 is an apocalyptic number.

11220306111 is a deficient number, since it is larger than the sum of its proper divisors (8129917089).

11220306111 is a wasteful number, since it uses less digits than its factorization.

11220306111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6005 (or 5992 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 11220306111 its reverse (11160302211), we get a palindrome (22380608322).

The spelling of 11220306111 in words is "eleven billion, two hundred twenty million, three hundred six thousand, one hundred eleven".