13312203011221 has 8 divisors (see below), whose sum is σ = 13473411333984. Its totient is φ = 13151014220400.

The previous prime is 13312203011183. The next prime is 13312203011287. The reversal of 13312203011221 is 12211030221331.

13312203011221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13312203011221 - 2²³ = 13312194622613 is a prime.

It is a super-2 number, since 2×13312203011221² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13312203011192 and 13312203011201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13312203011021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3509286 + ... + 6240151.

It is an arithmetic number, because the mean of its divisors is an integer number (1684176416748).

Almost surely, 2^{13312203011221} is an apocalyptic number.

It is an amenable number.

13312203011221 is a deficient number, since it is larger than the sum of its proper divisors (161208322763).

13312203011221 is an equidigital number, since it uses as much as digits as its factorization.

13312203011221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9765971.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 13312203011221 its reverse (12211030221331), we get a palindrome (25523233232552).

The spelling of 13312203011221 in words is "thirteen trillion, three hundred twelve billion, two hundred three million, eleven thousand, two hundred twenty-one".