111012221211200 has 168 divisors, whose sum is σ = 287594656305600. Its totient is φ = 42059245455360.

The previous prime is 111012221211191. The next prime is 111012221211223. The reversal of 111012221211200 is 2112122210111.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 150324461 + ... + 151061139.

It is an arithmetic number, because the mean of its divisors is an integer number (1711872954200).

Almost surely, 2^{111012221211200} is an apocalyptic number.

111012221211200 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 111012221211200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (143797328152800).

111012221211200 is an abundant number, since it is smaller than the sum of its proper divisors (176582435094400).

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

111012221211200 is a wasteful number, since it uses less digits than its factorization.

111012221211200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 741677 (or 741662 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 111012221211200 its reverse (2112122210111), we get a palindrome (113124343421311).

The spelling of 111012221211200 in words is "one hundred eleven trillion, twelve billion, two hundred twenty-one million, two hundred eleven thousand, two hundred".