111222201211200 has 210 divisors, whose sum is σ = 408824834939246. Its totient is φ = 29659253621760.

The previous prime is 111222201211153. The next prime is 111222201211229. The reversal of 111222201211200 is 2112102222111.

111222201211200 is a `hidden beast` number, since 1 + 1 + 122 + 220 + 121 + 1 + 200 = 666.

111222201211200 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 1134429489216 + 110087771721984 = 1065096^2 + 10492272^2 .

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 428968399 + ... + 429227598.

Almost surely, 2^{111222201211200} is an apocalyptic number.

111222201211200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111222201211200 is an abundant number, since it is smaller than the sum of its proper divisors (297602633728046).

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

111222201211200 is an equidigital number, since it uses as much as digits as its factorization.

111222201211200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 858196031 (or 858196007 counting only the distinct ones).

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

Adding to 111222201211200 its reverse (2112102222111), we get a palindrome (113334303433311).

The spelling of 111222201211200 in words is "one hundred eleven trillion, two hundred twenty-two billion, two hundred one million, two hundred eleven thousand, two hundred".