112120221042 has 24 divisors (see below), whose sum is σ = 242933783040. Its totient is φ = 37372385880.

The previous prime is 112120221041. The next prime is 112120221061. The reversal of 112120221042 is 240122021211.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (112120221041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 900567 + ... + 1017477.

It is an arithmetic number, because the mean of its divisors is an integer number (10122240960).

Almost surely, 2^112120221042 is an apocalyptic number.

112120221042 is an abundant number, since it is smaller than the sum of its proper divisors (130813561998).

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

112120221042 is a wasteful number, since it uses less digits than its factorization.

112120221042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170198 (or 170195 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 112120221042 its reverse (240122021211), we get a palindrome (352242242253).

The spelling of 112120221042 in words is "one hundred twelve billion, one hundred twenty million, two hundred twenty-one thousand, forty-two".