112120221220 has 72 divisors (see below), whose sum is σ = 273948829056. Its totient is φ = 38433479616.

The previous prime is 112120221217. The next prime is 112120221233. The reversal of 112120221220 is 22122021211.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 112120221194 and 112120221203.

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 23 ways as a sum of consecutive naturals, for example, 7094167 + ... + 7109953.

It is an arithmetic number, because the mean of its divisors is an integer number (3804844848).

Almost surely, 2^112120221220 is an apocalyptic number.

112120221220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

112120221220 is an abundant number, since it is smaller than the sum of its proper divisors (161828607836).

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

112120221220 is a wasteful number, since it uses less digits than its factorization.

112120221220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23057 (or 23048 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 112120221220 its reverse (22122021211), we get a palindrome (134242242431).

Subtracting from 112120221220 its reverse (22122021211), we obtain a square (89998200009 = 299997²).

The spelling of 112120221220 in words is "one hundred twelve billion, one hundred twenty million, two hundred twenty-one thousand, two hundred twenty".