112113221221 has 4 divisors (see below), whose sum is σ = 113532376000. Its totient is φ = 110694066444.

The previous prime is 112113221219. The next prime is 112113221249. The reversal of 112113221221 is 122122311211.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 122122311211 = 2089 ⋅58459699.

It is a cyclic number.

It is not a de Polignac number, because 112113221221 - 2¹ = 112113221219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112113221201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 709577271 + ... + 709577428.

It is an arithmetic number, because the mean of its divisors is an integer number (28383094000).

Almost surely, 2^112113221221 is an apocalyptic number.

It is an amenable number.

112113221221 is a deficient number, since it is larger than the sum of its proper divisors (1419154779).

112113221221 is an equidigital number, since it uses as much as digits as its factorization.

112113221221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1419154778.

The product of its digits is 96, while the sum is 19.

Adding to 112113221221 its reverse (122122311211), we get a palindrome (234235532432).

The spelling of 112113221221 in words is "one hundred twelve billion, one hundred thirteen million, two hundred twenty-one thousand, two hundred twenty-one".