111021222120200 has 192 divisors, whose sum is σ = 307852372258560. Its totient is φ = 36406242385920.

The previous prime is 111021222120199. The next prime is 111021222120311. The reversal of 111021222120200 is 2021222120111.

It is a super-2 number, since 2×111021222120200² (a number of 29 digits) contains 22 as substring.

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 47 ways as a sum of consecutive naturals, for example, 380876912 + ... + 381168288.

It is an arithmetic number, because the mean of its divisors is an integer number (1603397772180).

Almost surely, 2^{111021222120200} is an apocalyptic number.

111021222120200 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 111021222120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153926186129280).

111021222120200 is an abundant number, since it is smaller than the sum of its proper divisors (196831150138360).

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

111021222120200 is a wasteful number, since it uses less digits than its factorization.

111021222120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303256 (or 303247 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 111021222120200 its reverse (2021222120111), we get a palindrome (113042444240311).

The spelling of 111021222120200 in words is "one hundred eleven trillion, twenty-one billion, two hundred twenty-two million, one hundred twenty thousand, two hundred".