12111120200 has 48 divisors (see below), whose sum is σ = 28229467380. Its totient is φ = 4832213760.

The previous prime is 12111120193. The next prime is 12111120361. The reversal of 12111120200 is 202111121.

It can be written as a sum of positive squares in 6 ways, for example, as 6941222596 + 5169897604 = 83314^2 + 71902^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3134 + ... + 155666.

Almost surely, 2^12111120200 is an apocalyptic number.

12111120200 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 12111120200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14114733690).

12111120200 is an abundant number, since it is smaller than the sum of its proper divisors (16118347180).

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

12111120200 is a wasteful number, since it uses less digits than its factorization.

12111120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152946 (or 152937 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12111120200 its reverse (202111121), we get a palindrome (12313231321).

The spelling of 12111120200 in words is "twelve billion, one hundred eleven million, one hundred twenty thousand, two hundred".