13241121221 has 8 divisors (see below), whose sum is σ = 13511822688. Its totient is φ = 12972150000.

The previous prime is 13241121203. The next prime is 13241121239. The reversal of 13241121221 is 12212114231.

It is an interprime number because it is at equal distance from previous prime (13241121203) and next prime (13241121239).

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

It is a cyclic number.

It is not a de Polignac number, because 13241121221 - 2¹⁴ = 13241104837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13241121193 and 13241121202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13241121251) 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 7 ways as a sum of consecutive naturals, for example, 417095 + ... + 447716.

It is an arithmetic number, because the mean of its divisors is an integer number (1688977836).

Almost surely, 2^13241121221 is an apocalyptic number.

It is an amenable number.

13241121221 is a deficient number, since it is larger than the sum of its proper divisors (270701467).

13241121221 is an equidigital number, since it uses as much as digits as its factorization.

13241121221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 865123.

The product of its digits is 192, while the sum is 20.

Adding to 13241121221 its reverse (12212114231), we get a palindrome (25453235452).

The spelling of 13241121221 in words is "thirteen billion, two hundred forty-one million, one hundred twenty-one thousand, two hundred twenty-one".