111111012212200 has 1728 divisors, whose sum is σ = 363651509188800. Its totient is φ = 31262837760000.

The previous prime is 111111012212159. The next prime is 111111012212231. The reversal of 111111012212200 is 2212210111111.

111111012212200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 431 ways as a sum of consecutive naturals, for example, 184876891900 + ... + 184876892500.

It is an arithmetic number, because the mean of its divisors is an integer number (210446475225).

Almost surely, 2^{111111012212200} is an apocalyptic number.

111111012212200 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 111111012212200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181825754594400).

111111012212200 is an abundant number, since it is smaller than the sum of its proper divisors (252540496976600).

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

111111012212200 is a wasteful number, since it uses less digits than its factorization.

111111012212200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 912 (or 885 counting only the distinct ones).

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

Adding to 111111012212200 its reverse (2212210111111), we get a palindrome (113323222323311).

The spelling of 111111012212200 in words is "one hundred eleven trillion, one hundred eleven billion, twelve million, two hundred twelve thousand, two hundred".