111220110000120 has 256 divisors, whose sum is σ = 364299667015680. Its totient is φ = 26939752358400.

The previous prime is 111220110000113. The next prime is 111220110000169. The reversal of 111220110000120 is 21000011022111.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 111220110000096 and 111220110000105.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 9328192479 + ... + 9328204401.

It is an arithmetic number, because the mean of its divisors is an integer number (1423045574280).

Almost surely, 2^{111220110000120} is an apocalyptic number.

111220110000120 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 111220110000120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (182149833507840).

111220110000120 is an abundant number, since it is smaller than the sum of its proper divisors (253079557015560).

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

111220110000120 is a wasteful number, since it uses less digits than its factorization.

111220110000120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17306 (or 17302 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 111220110000120 its reverse (21000011022111), we get a palindrome (132220121022231).

The spelling of 111220110000120 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred ten million, one hundred twenty", and thus it is an aban number.