101200112 has 20 divisors (see below), whose sum is σ = 211158360. Its totient is φ = 46707648.

The previous prime is 101200109. The next prime is 101200117. The reversal of 101200112 is 211002101.

It is a Harshad number since it is a multiple of its sum of digits (8).

It is a self number, because there is not a number n which added to its sum of digits gives 101200112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101200117) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 243062 + ... + 243477.

It is an arithmetic number, because the mean of its divisors is an integer number (10557918).

Almost surely, 2^101200112 is an apocalyptic number.

It is an amenable number.

101200112 is an abundant number, since it is smaller than the sum of its proper divisors (109958248).

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

101200112 is a wasteful number, since it uses less digits than its factorization.

101200112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 486560 (or 486554 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 8.

The square root of 101200112 is about 10059.8266386653. The cubic root of 101200112 is about 466.0083133836.

Adding to 101200112 its reverse (211002101), we get a palindrome (312202213).

The spelling of 101200112 in words is "one hundred one million, two hundred thousand, one hundred twelve".