12421224212 has 24 divisors (see below), whose sum is σ = 22501984512. Its totient is φ = 5993222400.

The previous prime is 12421224203. The next prime is 12421224241. The reversal of 12421224212 is 21242212421.

12421224212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nude number because it is divisible by every one of its digits.

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, 98114 + ... + 185657.

It is an arithmetic number, because the mean of its divisors is an integer number (937582688).

Almost surely, 2^12421224212 is an apocalyptic number.

It is an amenable number.

12421224212 is a deficient number, since it is larger than the sum of its proper divisors (10080760300).

12421224212 is a wasteful number, since it uses less digits than its factorization.

12421224212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284159 (or 284157 counting only the distinct ones).

The product of its digits is 1024, while the sum is 23.

Adding to 12421224212 its reverse (21242212421), we get a palindrome (33663436633).

The spelling of 12421224212 in words is "twelve billion, four hundred twenty-one million, two hundred twenty-four thousand, two hundred twelve".