111200112200100 has 432 divisors, whose sum is σ = 408444258269376. Its totient is φ = 23097908736000.

The previous prime is 111200112200083. The next prime is 111200112200113. The reversal of 111200112200100 is 1002211002111.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 438565360 + ... + 438818840.

It is an arithmetic number, because the mean of its divisors is an integer number (945472820068).

Almost surely, 2^{111200112200100} is an apocalyptic number.

111200112200100 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 111200112200100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (204222129134688).

111200112200100 is an abundant number, since it is smaller than the sum of its proper divisors (297244146069276).

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

111200112200100 is a wasteful number, since it uses less digits than its factorization.

111200112200100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256236 (or 256222 counting only the distinct ones).

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

Adding to 111200112200100 its reverse (1002211002111), we get a palindrome (112202323202211).

The spelling of 111200112200100 in words is "one hundred eleven trillion, two hundred billion, one hundred twelve million, two hundred thousand, one hundred".