111112022221200 has 2880 divisors, whose sum is σ = 534891441756672. Its totient is φ = 20612048486400.

The previous prime is 111112022221169. The next prime is 111112022221253. The reversal of 111112022221200 is 2122220211111.

111112022221200 is a `hidden beast` number, since 1 + 111 + 120 + 222 + 212 + 0 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 575 ways as a sum of consecutive naturals, for example, 23066641192 + ... + 23066646008.

Almost surely, 2^{111112022221200} is an apocalyptic number.

111112022221200 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 111112022221200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (267445720878336).

111112022221200 is an abundant number, since it is smaller than the sum of its proper divisors (423779419535472).

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

111112022221200 is a wasteful number, since it uses less digits than its factorization.

111112022221200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5082 (or 5068 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 111112022221200 its reverse (2122220211111), we get a palindrome (113234242432311).

The spelling of 111112022221200 in words is "one hundred eleven trillion, one hundred twelve billion, twenty-two million, two hundred twenty-one thousand, two hundred".