12621004347244 has 12 divisors (see below), whose sum is σ = 22201196767624. Its totient is φ = 6277805270784.

The previous prime is 12621004347241. The next prime is 12621004347257. The reversal of 12621004347244 is 44274340012621.

It is a junction number, because it is equal to n+sod(n) for n = 12621004347197 and 12621004347206.

It is not an unprimeable number, because it can be changed into a prime (12621004347241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8174224842 + ... + 8174226385.

Almost surely, 2^{12621004347244} is an apocalyptic number.

It is an amenable number.

12621004347244 is a deficient number, since it is larger than the sum of its proper divisors (9580192420380).

12621004347244 is a wasteful number, since it uses less digits than its factorization.

12621004347244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16348451424 (or 16348451422 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 40.

Adding to 12621004347244 its reverse (44274340012621), we get a palindrome (56895344359865).

The spelling of 12621004347244 in words is "twelve trillion, six hundred twenty-one billion, four million, three hundred forty-seven thousand, two hundred forty-four".