112112211223220 has 96 divisors (see below), whose sum is σ = 257781812220576. Its totient is φ = 40704146841600.

The previous prime is 112112211223211. The next prime is 112112211223241. The reversal of 112112211223220 is 22322112211211.

It can be written as a sum of positive squares in 16 ways, for example, as 60152247500944 + 51959963722276 = 7755788^2 + 7208326^2 .

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 50570840 + ... + 52741200.

It is an arithmetic number, because the mean of its divisors is an integer number (2685227210631).

Almost surely, 2^{112112211223220} is an apocalyptic number.

112112211223220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 112112211223220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (128890906110288).

112112211223220 is an abundant number, since it is smaller than the sum of its proper divisors (145669600997356).

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

112112211223220 is a wasteful number, since it uses less digits than its factorization.

112112211223220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2173701 (or 2173699 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

Adding to 112112211223220 its reverse (22322112211211), we get a palindrome (134434323434431).

The spelling of 112112211223220 in words is "one hundred twelve trillion, one hundred twelve billion, two hundred eleven million, two hundred twenty-three thousand, two hundred twenty".