13522103324221 has 4 divisors (see below), whose sum is σ = 13522162715200. Its totient is φ = 13522043933244.

The previous prime is 13522103324161. The next prime is 13522103324339. The reversal of 13522103324221 is 12242330122531.

It is a happy number.

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 13522103324221 - 2²⁷ = 13521969106493 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 (13522103328221) 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, 29352651 + ... + 29809768.

It is an arithmetic number, because the mean of its divisors is an integer number (3380540678800).

Almost surely, 2^{13522103324221} is an apocalyptic number.

It is an amenable number.

13522103324221 is a deficient number, since it is larger than the sum of its proper divisors (59390979).

13522103324221 is an equidigital number, since it uses as much as digits as its factorization.

13522103324221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59390978.

The product of its (nonzero) digits is 17280, while the sum is 31.

Adding to 13522103324221 its reverse (12242330122531), we get a palindrome (25764433446752).

The spelling of 13522103324221 in words is "thirteen trillion, five hundred twenty-two billion, one hundred three million, three hundred twenty-four thousand, two hundred twenty-one".