112720642225 has 6 divisors (see below), whose sum is σ = 139773596390. Its totient is φ = 90176513760.

The previous prime is 112720642217. The next prime is 112720642231. The reversal of 112720642225 is 522246027211.

It can be written as a sum of positive squares in 3 ways, for example, as 10594379041 + 102126263184 = 102929^2 + 319572^2 .

It is not a de Polignac number, because 112720642225 - 2³ = 112720642217 is a prime.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 2254412820 + ... + 2254412869.

Almost surely, 2^112720642225 is an apocalyptic number.

It is an amenable number.

112720642225 is a deficient number, since it is larger than the sum of its proper divisors (27052954165).

112720642225 is an equidigital number, since it uses as much as digits as its factorization.

112720642225 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4508825699 (or 4508825694 counting only the distinct ones).

The product of its (nonzero) digits is 26880, while the sum is 34.

Adding to 112720642225 its reverse (522246027211), we get a palindrome (634966669436).

The spelling of 112720642225 in words is "one hundred twelve billion, seven hundred twenty million, six hundred forty-two thousand, two hundred twenty-five".