13221131013212 has 6 divisors (see below), whose sum is σ = 23136979273128. Its totient is φ = 6610565506604.

The previous prime is 13221131013199. The next prime is 13221131013229. The reversal of 13221131013212 is 21231013112231.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 1652641376648 + ... + 1652641376655.

It is an arithmetic number, because the mean of its divisors is an integer number (3856163212188).

Almost surely, 2^{13221131013212} is an apocalyptic number.

It is an amenable number.

13221131013212 is a deficient number, since it is larger than the sum of its proper divisors (9915848259916).

13221131013212 is a wasteful number, since it uses less digits than its factorization.

13221131013212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3305282753307 (or 3305282753305 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 13221131013212 its reverse (21231013112231), we get a palindrome (34452144125443).

The spelling of 13221131013212 in words is "thirteen trillion, two hundred twenty-one billion, one hundred thirty-one million, thirteen thousand, two hundred twelve".