111220112001120 has 192 divisors, whose sum is σ = 357630615659520. Its totient is φ = 29047318272000.

The previous prime is 111220112001101. The next prime is 111220112001139. The reversal of 111220112001120 is 21100211022111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (111220112001101) and next prime (111220112001139).

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 111220112001120.

It is a congruent number.

It is an unprimeable number.

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 31 ways as a sum of consecutive naturals, for example, 5660215 + ... + 15952374.

It is an arithmetic number, because the mean of its divisors is an integer number (1862659456560).

Almost surely, 2^{111220112001120} is an apocalyptic number.

111220112001120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220112001120 is an abundant number, since it is smaller than the sum of its proper divisors (246410503658400).

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

111220112001120 is a wasteful number, since it uses less digits than its factorization.

111220112001120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21612829 (or 21612821 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 111220112001120 its reverse (21100211022111), we get a palindrome (132320323023231).

The spelling of 111220112001120 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twelve million, one thousand, one hundred twenty".