112200021121 has 4 divisors (see below), whose sum is σ = 114936607044. Its totient is φ = 109463435200.

The previous prime is 112200021119. The next prime is 112200021161. The reversal of 112200021121 is 121120002211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121120002211 = 13 ⋅9316923247.

It can be written as a sum of positive squares in 2 ways, for example, as 13980461121 + 98219560000 = 118239^2 + 313400^2 .

It is a cyclic number.

It is not a de Polignac number, because 112200021121 - 2¹ = 112200021119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (112200021161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1368292900 + ... + 1368292981.

It is an arithmetic number, because the mean of its divisors is an integer number (28734151761).

Almost surely, 2^112200021121 is an apocalyptic number.

It is an amenable number.

112200021121 is a deficient number, since it is larger than the sum of its proper divisors (2736585923).

112200021121 is an equidigital number, since it uses as much as digits as its factorization.

112200021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2736585922.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 112200021121 its reverse (121120002211), we get a palindrome (233320023332).

The spelling of 112200021121 in words is "one hundred twelve billion, two hundred million, twenty-one thousand, one hundred twenty-one".