11132211111 has 16 divisors (see below), whose sum is σ = 17138252544. Its totient is φ = 6295682304.

The previous prime is 11132211089. The next prime is 11132211113. The reversal of 11132211111 is 11111223111.

11132211111 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 11132211111 - 2¹⁰ = 11132210087 is a prime.

It is a super-2 number, since 2×11132211111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11132211113) 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 15 ways as a sum of consecutive naturals, for example, 2730465 + ... + 2734538.

It is an arithmetic number, because the mean of its divisors is an integer number (1071140784).

Almost surely, 2^11132211111 is an apocalyptic number.

11132211111 is a deficient number, since it is larger than the sum of its proper divisors (6006041433).

11132211111 is an equidigital number, since it uses as much as digits as its factorization.

11132211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465110.

The product of its digits is 12, while the sum is 15.

Adding to 11132211111 its reverse (11111223111), we get a palindrome (22243434222).

The spelling of 11132211111 in words is "eleven billion, one hundred thirty-two million, two hundred eleven thousand, one hundred eleven".