100001120112 has 240 divisors, whose sum is σ = 303217200000. Its totient is φ = 30658715136.

The previous prime is 100001120053. The next prime is 100001120119. The reversal of 100001120112 is 211021100001.

It is a happy number.

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 = 100001120094 and 100001120103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100001120119) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 66711139 + ... + 66712637.

It is an arithmetic number, because the mean of its divisors is an integer number (1263405000).

Almost surely, 2^100001120112 is an apocalyptic number.

100001120112 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 100001120112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151608600000).

100001120112 is an abundant number, since it is smaller than the sum of its proper divisors (203216079888).

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

100001120112 is a wasteful number, since it uses less digits than its factorization.

100001120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2228 (or 2219 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100001120112 its reverse (211021100001), we get a palindrome (311022220113).

The spelling of 100001120112 in words is "one hundred billion, one million, one hundred twenty thousand, one hundred twelve".