110111111221100 has 144 divisors (see below), whose sum is σ = 262285331997696. Its totient is φ = 39791246112000.

The previous prime is 110111111221087. The next prime is 110111111221117. The reversal of 110111111221100 is 1122111111011.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2894062277 + ... + 2894100323.

Almost surely, 2^{110111111221100} is an apocalyptic number.

110111111221100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 110111111221100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131142665998848).

110111111221100 is an abundant number, since it is smaller than the sum of its proper divisors (152174220776596).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

110111111221100 is a wasteful number, since it uses less digits than its factorization.

110111111221100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54376 (or 54369 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 110111111221100 its reverse (1122111111011), we get a palindrome (111233222332111).

The spelling of 110111111221100 in words is "one hundred ten trillion, one hundred eleven billion, one hundred eleven million, two hundred twenty-one thousand, one hundred".