12443400212 has 24 divisors (see below), whose sum is σ = 22247447040. Its totient is φ = 6087084320.

The previous prime is 12443400199. The next prime is 12443400241. The reversal of 12443400212 is 21200434421.

12443400212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575762 + ... + 596982.

It is an arithmetic number, because the mean of its divisors is an integer number (926976960).

Almost surely, 2^12443400212 is an apocalyptic number.

It is an amenable number.

12443400212 is a deficient number, since it is larger than the sum of its proper divisors (9804046828).

12443400212 is a wasteful number, since it uses less digits than its factorization.

12443400212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24391 (or 24389 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 12443400212 its reverse (21200434421), we get a palindrome (33643834633).

The spelling of 12443400212 in words is "twelve billion, four hundred forty-three million, four hundred thousand, two hundred twelve".