12630644030221 has 4 divisors (see below), whose sum is σ = 14435021748832. Its totient is φ = 10826266311612.

The previous prime is 12630644030219. The next prime is 12630644030267. The reversal of 12630644030221 is 12203044603621.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12630644030221 - 2¹ = 12630644030219 is a prime.

It is a super-2 number, since 2×12630644030221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12630644030281) 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, 902188859295 + ... + 902188859308.

It is an arithmetic number, because the mean of its divisors is an integer number (3608755437208).

Almost surely, 2^{12630644030221} is an apocalyptic number.

It is an amenable number.

12630644030221 is a deficient number, since it is larger than the sum of its proper divisors (1804377718611).

12630644030221 is an equidigital number, since it uses as much as digits as its factorization.

12630644030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1804377718610.

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 12630644030221 its reverse (12203044603621), we get a palindrome (24833688633842).

The spelling of 12630644030221 in words is "twelve trillion, six hundred thirty billion, six hundred forty-four million, thirty thousand, two hundred twenty-one".