112320212031220 has 24 divisors (see below), whose sum is σ = 235872903223944. Its totient is φ = 44927997582336.

The previous prime is 112320212031217. The next prime is 112320212031229. The reversal of 112320212031220 is 22130212023211.

It can be written as a sum of positive squares in 4 ways, for example, as 4954390415716 + 107365821615504 = 2225846^2 + 10361748^2 .

It is a junction number, because it is equal to n+sod(n) for n = 112320212031191 and 112320212031200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112320212031229) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5658972 + ... + 16020748.

It is an arithmetic number, because the mean of its divisors is an integer number (9828037634331).

Almost surely, 2^{112320212031220} is an apocalyptic number.

112320212031220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112320212031220 is an abundant number, since it is smaller than the sum of its proper divisors (123552691192724).

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

112320212031220 is a wasteful number, since it uses less digits than its factorization.

112320212031220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10903779 (or 10903777 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 112320212031220 its reverse (22130212023211), we get a palindrome (134450424054431).

The spelling of 112320212031220 in words is "one hundred twelve trillion, three hundred twenty billion, two hundred twelve million, thirty-one thousand, two hundred twenty".