12111200220 has 96 divisors (see below), whose sum is σ = 39412800000. Its totient is φ = 2721348864.

The previous prime is 12111200201. The next prime is 12111200237. The reversal of 12111200220 is 2200211121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12111200196 and 12111200205.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 219595 + ... + 269154.

It is an arithmetic number, because the mean of its divisors is an integer number (410550000).

Almost surely, 2^12111200220 is an apocalyptic number.

12111200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111200220 is an abundant number, since it is smaller than the sum of its proper divisors (27301599780).

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

12111200220 is a wasteful number, since it uses less digits than its factorization.

12111200220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 488827 (or 488825 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12111200220 its reverse (2200211121), we get a palindrome (14311411341).

The spelling of 12111200220 in words is "twelve billion, one hundred eleven million, two hundred thousand, two hundred twenty".