111212200211200 has 216 divisors, whose sum is σ = 300449728111680. Its totient is φ = 40419544780800.

The previous prime is 111212200211159. The next prime is 111212200211201. The reversal of 111212200211200 is 2112002212111.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (111212200211201) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 133838611 + ... + 134666989.

It is an arithmetic number, because the mean of its divisors is an integer number (1390970963480).

Almost surely, 2^{111212200211200} is an apocalyptic number.

111212200211200 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 111212200211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (150224864055840).

111212200211200 is an abundant number, since it is smaller than the sum of its proper divisors (189237527900480).

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

111212200211200 is a wasteful number, since it uses less digits than its factorization.

111212200211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 830323 (or 830304 counting only the distinct ones).

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

Adding to 111212200211200 its reverse (2112002212111), we get a palindrome (113324202423311).

The spelling of 111212200211200 in words is "one hundred eleven trillion, two hundred twelve billion, two hundred million, two hundred eleven thousand, two hundred".