111220112010220 has 24 divisors (see below), whose sum is σ = 233989222877424. Its totient is φ = 44406713822016.

The previous prime is 111220112010199. The next prime is 111220112010223. The reversal of 111220112010220 is 22010211022111.

It is a junction number, because it is equal to n+sod(n) for n = 111220112010194 and 111220112010203.

It is not an unprimeable number, because it can be changed into a prime (111220112010223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5083175167 + ... + 5083197046.

It is an arithmetic number, because the mean of its divisors is an integer number (9749550953226).

Almost surely, 2^{111220112010220} is an apocalyptic number.

111220112010220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111220112010220 is an abundant number, since it is smaller than the sum of its proper divisors (122769110867204).

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

111220112010220 is a wasteful number, since it uses less digits than its factorization.

111220112010220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10166372769 (or 10166372767 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111220112010220 its reverse (22010211022111), we get a palindrome (133230323032331).

The spelling of 111220112010220 in words is "one hundred eleven trillion, two hundred twenty billion, one hundred twelve million, ten thousand, two hundred twenty".