112200100121 has 4 divisors (see below), whose sum is σ = 113019079092. Its totient is φ = 111381121152.

The previous prime is 112200100063. The next prime is 112200100127. The reversal of 112200100121 is 121001002211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121001002211 = 60169 ⋅2011019.

It can be written as a sum of positive squares in 2 ways, for example, as 44451818896 + 67748281225 = 210836^2 + 260285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-112200100121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112200100127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 409489280 + ... + 409489553.

It is an arithmetic number, because the mean of its divisors is an integer number (28254769773).

Almost surely, 2^112200100121 is an apocalyptic number.

It is an amenable number.

112200100121 is a deficient number, since it is larger than the sum of its proper divisors (818978971).

112200100121 is an equidigital number, since it uses as much as digits as its factorization.

112200100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818978970.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 112200100121 its reverse (121001002211), we get a palindrome (233201102332).

The spelling of 112200100121 in words is "one hundred twelve billion, two hundred million, one hundred thousand, one hundred twenty-one".