13212402102221 has 32 divisors (see below), whose sum is σ = 15478102080000. Its totient is φ = 11273444977536.

The previous prime is 13212402102191. The next prime is 13212402102223. The reversal of 13212402102221 is 12220120421231.

It is not a de Polignac number, because 13212402102221 - 2¹⁴ = 13212402085837 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13212402102223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 582571760 + ... + 582594438.

It is an arithmetic number, because the mean of its divisors is an integer number (483690690000).

Almost surely, 2^{13212402102221} is an apocalyptic number.

It is an amenable number.

13212402102221 is a deficient number, since it is larger than the sum of its proper divisors (2265699977779).

13212402102221 is an equidigital number, since it uses as much as digits as its factorization.

13212402102221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30346 (or 30332 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 13212402102221 its reverse (12220120421231), we get a palindrome (25432522523452).

The spelling of 13212402102221 in words is "thirteen trillion, two hundred twelve billion, four hundred two million, one hundred two thousand, two hundred twenty-one".