12421443562012 has 24 divisors (see below), whose sum is σ = 21961966937904. Its totient is φ = 6146597862912.

The previous prime is 12421443561997. The next prime is 12421443562061. The reversal of 12421443562012 is 21026534412421.

12421443562012 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 polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29104263 + ... + 29527969.

It is an arithmetic number, because the mean of its divisors is an integer number (915081955746).

Almost surely, 2^{12421443562012} is an apocalyptic number.

It is an amenable number.

12421443562012 is a deficient number, since it is larger than the sum of its proper divisors (9540523375892).

12421443562012 is a wasteful number, since it uses less digits than its factorization.

12421443562012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 499365 (or 499363 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

Adding to 12421443562012 its reverse (21026534412421), we get a palindrome (33447977974433).

The spelling of 12421443562012 in words is "twelve trillion, four hundred twenty-one billion, four hundred forty-three million, five hundred sixty-two thousand, twelve".