11121111110 has 64 divisors (see below), whose sum is σ = 21832675200. Its totient is φ = 4065718272.

The previous prime is 11121111107. The next prime is 11121111121. The reversal of 11121111110 is 1111112111.

It is a happy number.

11121111110 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×11121111110² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11121111091 and 11121111100.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 638396 + ... + 655584.

It is an arithmetic number, because the mean of its divisors is an integer number (341135550).

Almost surely, 2^11121111110 is an apocalyptic number.

11121111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11121111110 is a deficient number, since it is larger than the sum of its proper divisors (10711564090).

11121111110 is a wasteful number, since it uses less digits than its factorization.

11121111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17345.

The product of its (nonzero) digits is 2, while the sum is 11.

Adding to 11121111110 its reverse (1111112111), we get a palindrome (12232223221).

It can be divided in two parts, 11 and 121111110, that added together give a palindrome (121111121).

The spelling of 11121111110 in words is "eleven billion, one hundred twenty-one million, one hundred eleven thousand, one hundred ten".