11122111011 has 16 divisors (see below), whose sum is σ = 16337795328. Its totient is φ = 6673932000.

The previous prime is 11122111009. The next prime is 11122111079. The reversal of 11122111011 is 11011122111.

It is not a de Polignac number, because 11122111011 - 2¹ = 11122111009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11122110011) 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 15 ways as a sum of consecutive naturals, for example, 1665151 + ... + 1671816.

It is an arithmetic number, because the mean of its divisors is an integer number (1021112208).

Almost surely, 2^11122111011 is an apocalyptic number.

11122111011 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

11122111011 is a deficient number, since it is larger than the sum of its proper divisors (5215684317).

11122111011 is a wasteful number, since it uses less digits than its factorization.

11122111011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3337082.

The product of its (nonzero) digits is 4, while the sum is 12.

Adding to 11122111011 its reverse (11011122111), we get a palindrome (22133233122).

It can be divided in two parts, 111 and 22111011, that added together give a palindrome (22111122).

The spelling of 11122111011 in words is "eleven billion, one hundred twenty-two million, one hundred eleven thousand, eleven".