12130112220 has 24 divisors (see below), whose sum is σ = 33964314384. Its totient is φ = 3234696576.

The previous prime is 12130112207. The next prime is 12130112237. The reversal of 12130112220 is 2221103121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12130112220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101084209 + ... + 101084328.

It is an arithmetic number, because the mean of its divisors is an integer number (1415179766).

Almost surely, 2^12130112220 is an apocalyptic number.

12130112220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12130112220 is an abundant number, since it is smaller than the sum of its proper divisors (21834202164).

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

12130112220 is a wasteful number, since it uses less digits than its factorization.

12130112220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202168549 (or 202168547 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 12130112220 its reverse (2221103121), we get a palindrome (14351215341).

Subtracting from 12130112220 its reverse (2221103121), we obtain a palindrome (9909009099).

The spelling of 12130112220 in words is "twelve billion, one hundred thirty million, one hundred twelve thousand, two hundred twenty".