12200112111220 has 144 divisors (see below), whose sum is σ = 28506139861248. Its totient is φ = 4382250400000.

The previous prime is 12200112111211. The next prime is 12200112111221. The reversal of 12200112111220 is 2211121100221.

It is a junction number, because it is equal to n+sod(n) for n = 12200112111194 and 12200112111203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12200112111221) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 105287115 + ... + 105402925.

It is an arithmetic number, because the mean of its divisors is an integer number (197959304592).

Almost surely, 2^{12200112111220} is an apocalyptic number.

12200112111220 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 12200112111220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14253069930624).

12200112111220 is an abundant number, since it is smaller than the sum of its proper divisors (16306027750028).

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

12200112111220 is a wasteful number, since it uses less digits than its factorization.

12200112111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116374 (or 116361 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 12200112111220 its reverse (2211121100221), we get a palindrome (14411233211441).

It can be divided in two parts, 122001 and 12111220, that added together give a palindrome (12233221).

The spelling of 12200112111220 in words is "twelve trillion, two hundred billion, one hundred twelve million, one hundred eleven thousand, two hundred twenty".