111112211201200 has 360 divisors, whose sum is σ = 324189183626784. Its totient is φ = 36374323814400.

The previous prime is 111112211201141. The next prime is 111112211201213. The reversal of 111112211201200 is 2102112211111.

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

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 71 ways as a sum of consecutive naturals, for example, 15988714 + ... + 21860086.

Almost surely, 2^{111112211201200} is an apocalyptic number.

111112211201200 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 111112211201200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162094591813392).

111112211201200 is an abundant number, since it is smaller than the sum of its proper divisors (213076972425584).

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

111112211201200 is a wasteful number, since it uses less digits than its factorization.

111112211201200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5871453 (or 5871431 counting only the distinct ones).

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

Adding to 111112211201200 its reverse (2102112211111), we get a palindrome (113214323412311).

The spelling of 111112211201200 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred eleven million, two hundred one thousand, two hundred".