111010010112 has 220 divisors, whose sum is σ = 333121181536. Its totient is φ = 36822159360.

The previous prime is 111010010093. The next prime is 111010010131. The reversal of 111010010112 is 211010010111.

It is an interprime number because it is at equal distance from previous prime (111010010093) and next prime (111010010131).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 111010010094 and 111010010103.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 17498013 + ... + 17504355.

Almost surely, 2^111010010112 is an apocalyptic number.

111010010112 is a gapful number since it is divisible by the number (12) 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 111010010112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166560590768).

111010010112 is an abundant number, since it is smaller than the sum of its proper divisors (222111171424).

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

111010010112 is an equidigital number, since it uses as much as digits as its factorization.

111010010112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6586 (or 6559 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 9.

Adding to 111010010112 its reverse (211010010111), we get a palindrome (322020020223).

Subtracting 111010010112 from its reverse (211010010111), we obtain a palindrome (99999999999).

The spelling of 111010010112 in words is "one hundred eleven billion, ten million, ten thousand, one hundred twelve".