112221120120 has 128 divisors (see below), whose sum is σ = 358860456000. Its totient is φ = 27976196096.

The previous prime is 112221120119. The next prime is 112221120127. The reversal of 112221120120 is 21021122211.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 112221120120.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (112221120127) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 119362 + ... + 488558.

Almost surely, 2^112221120120 is an apocalyptic number.

112221120120 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 112221120120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179430228000).

112221120120 is an abundant number, since it is smaller than the sum of its proper divisors (246639335880).

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

112221120120 is a wasteful number, since it uses less digits than its factorization.

112221120120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 369377 (or 369373 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 112221120120 its reverse (21021122211), we get a palindrome (133242242331).

The spelling of 112221120120 in words is "one hundred twelve billion, two hundred twenty-one million, one hundred twenty thousand, one hundred twenty".