12455220012 has 12 divisors (see below), whose sum is σ = 29062180056. Its totient is φ = 4151740000.

The previous prime is 12455219989. The next prime is 12455220031. The reversal of 12455220012 is 21002255421.

12455220012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 518967489 + ... + 518967512.

It is an arithmetic number, because the mean of its divisors is an integer number (2421848338).

Almost surely, 2^12455220012 is an apocalyptic number.

12455220012 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12455220012 is an abundant number, since it is smaller than the sum of its proper divisors (16606960044).

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

12455220012 is a wasteful number, since it uses less digits than its factorization.

12455220012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1037935008 (or 1037935006 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

Adding to 12455220012 its reverse (21002255421), we get a palindrome (33457475433).

The spelling of 12455220012 in words is "twelve billion, four hundred fifty-five million, two hundred twenty thousand, twelve".