11120220111 has 96 divisors (see below), whose sum is σ = 20093294592. Its totient is φ = 5312062080.

The previous prime is 11120220103. The next prime is 11120220131. The reversal of 11120220111 is 11102202111.

It is not a de Polignac number, because 11120220111 - 2³ = 11120220103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11120220131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 17293956 + ... + 17294598.

It is an arithmetic number, because the mean of its divisors is an integer number (209305152).

Almost surely, 2^11120220111 is an apocalyptic number.

11120220111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11120220111 is a deficient number, since it is larger than the sum of its proper divisors (8973074481).

11120220111 is a wasteful number, since it uses less digits than its factorization.

11120220111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1133 (or 1120 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 11120220111 its reverse (11102202111), we get a palindrome (22222422222).

The spelling of 11120220111 in words is "eleven billion, one hundred twenty million, two hundred twenty thousand, one hundred eleven".