13334310243221 has 12 divisors (see below), whose sum is σ = 14657333827500. Its totient is φ = 12121593517440.

The previous prime is 13334310243217. The next prime is 13334310243251. The reversal of 13334310243221 is 12234201343331.

It can be written as a sum of positive squares in 2 ways, for example, as 3234562683121 + 10099747560100 = 1798489^2 + 3178010^2 .

It is not a de Polignac number, because 13334310243221 - 2² = 13334310243217 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13334310243211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 618755 + ... + 5201103.

It is an arithmetic number, because the mean of its divisors is an integer number (1221444485625).

Almost surely, 2^{13334310243221} is an apocalyptic number.

13334310243221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13334310243221 is a deficient number, since it is larger than the sum of its proper divisors (1323023584279).

13334310243221 is a wasteful number, since it uses less digits than its factorization.

13334310243221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4606420 (or 4606409 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 32.

Adding to 13334310243221 its reverse (12234201343331), we get a palindrome (25568511586552).

It can be divided in two parts, 13334310 and 243221, that added together give a palindrome (13577531).

The spelling of 13334310243221 in words is "thirteen trillion, three hundred thirty-four billion, three hundred ten million, two hundred forty-three thousand, two hundred twenty-one".