13122231330221 has 8 divisors (see below), whose sum is σ = 14131678026144. Its totient is φ = 12112790960880.

The previous prime is 13122231330127. The next prime is 13122231330223. The reversal of 13122231330221 is 12203313222131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13122231330221 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 (13122231330223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3279590 + ... + 6082776.

It is an arithmetic number, because the mean of its divisors is an integer number (1766459753268).

Almost surely, 2^{13122231330221} is an apocalyptic number.

It is an amenable number.

13122231330221 is a deficient number, since it is larger than the sum of its proper divisors (1009446695923).

13122231330221 is a wasteful number, since it uses less digits than its factorization.

13122231330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3163291.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 13122231330221 its reverse (12203313222131), we get a palindrome (25325544552352).

The spelling of 13122231330221 in words is "thirteen trillion, one hundred twenty-two billion, two hundred thirty-one million, three hundred thirty thousand, two hundred twenty-one".