111100121110 has 16 divisors (see below), whose sum is σ = 218160238032. Its totient is φ = 40400044000.

The previous prime is 111100121101. The next prime is 111100121117. The reversal of 111100121110 is 11121001111.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111100121117) 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 7 ways as a sum of consecutive naturals, for example, 505000441 + ... + 505000660.

It is an arithmetic number, because the mean of its divisors is an integer number (13635014877).

Almost surely, 2^111100121110 is an apocalyptic number.

111100121110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

111100121110 is a deficient number, since it is larger than the sum of its proper divisors (107060116922).

111100121110 is a wasteful number, since it uses less digits than its factorization.

111100121110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1010001119.

The product of its (nonzero) digits is 2, while the sum is 10.

Adding to 111100121110 its reverse (11121001111), we get a palindrome (122221122221).

The spelling of 111100121110 in words is "one hundred eleven billion, one hundred million, one hundred twenty-one thousand, one hundred ten".