111000001021100 has 144 divisors (see below), whose sum is σ = 257120328141600. Its totient is φ = 41473866240000.

The previous prime is 111000001021097. The next prime is 111000001021127. The reversal of 111000001021100 is 1120100000111.

It is a happy number.

111000001021100 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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, 45047846 + ... + 47447954.

Almost surely, 2^{111000001021100} is an apocalyptic number.

111000001021100 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 111000001021100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128560164070800).

111000001021100 is an abundant number, since it is smaller than the sum of its proper divisors (146120327120500).

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

111000001021100 is a wasteful number, since it uses less digits than its factorization.

111000001021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2400484 (or 2400477 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 111000001021100 its reverse (1120100000111), we get a palindrome (112120101021211).

The spelling of 111000001021100 in words is "one hundred eleven trillion, one million, twenty-one thousand, one hundred".