13212440012 has 12 divisors (see below), whose sum is σ = 23188405800. Its totient is φ = 6587181216.

The previous prime is 13212440011. The next prime is 13212440023. The reversal of 13212440012 is 21004421231.

13212440012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (13212440011) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 4758137 + ... + 4760912.

It is an arithmetic number, because the mean of its divisors is an integer number (1932367150).

Almost surely, 2^13212440012 is an apocalyptic number.

It is an amenable number.

13212440012 is a deficient number, since it is larger than the sum of its proper divisors (9975965788).

13212440012 is a wasteful number, since it uses less digits than its factorization.

13212440012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9519400 (or 9519398 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 13212440012 its reverse (21004421231), we get a palindrome (34216861243).

The spelling of 13212440012 in words is "thirteen billion, two hundred twelve million, four hundred forty thousand, twelve".