12420334012 has 6 divisors (see below), whose sum is σ = 21735584528. Its totient is φ = 6210167004.

The previous prime is 12420334007. The next prime is 12420334021. The reversal of 12420334012 is 21043302421.

12420334012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12420334012² (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 (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1552541748 + ... + 1552541755.

Almost surely, 2^12420334012 is an apocalyptic number.

It is an amenable number.

12420334012 is a deficient number, since it is larger than the sum of its proper divisors (9315250516).

12420334012 is a wasteful number, since it uses less digits than its factorization.

12420334012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3105083507 (or 3105083505 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12420334012 its reverse (21043302421), we get a palindrome (33463636433).

The spelling of 12420334012 in words is "twelve billion, four hundred twenty million, three hundred thirty-four thousand, twelve".