12204400112 has 20 divisors (see below), whose sum is σ = 24890553480. Its totient is φ = 5781031488.

The previous prime is 12204400037. The next prime is 12204400141. The reversal of 12204400112 is 21100440221.

It is a super-2 number, since 2×12204400112² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20072723 + ... + 20073330.

It is an arithmetic number, because the mean of its divisors is an integer number (1244527674).

Almost surely, 2^12204400112 is an apocalyptic number.

It is an amenable number.

12204400112 is an abundant number, since it is smaller than the sum of its proper divisors (12686153368).

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

12204400112 is a wasteful number, since it uses less digits than its factorization.

12204400112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40146080 (or 40146074 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 12204400112 its reverse (21100440221), we get a palindrome (33304840333).

The spelling of 12204400112 in words is "twelve billion, two hundred four million, four hundred thousand, one hundred twelve".