13322221021213 has 16 divisors (see below), whose sum is σ = 14443644222000. Its totient is φ = 12214607086080.

The previous prime is 13322221021201. The next prime is 13322221021217. The reversal of 13322221021213 is 31212012222331.

It can be written as a sum of positive squares in 8 ways, for example, as 6426539343844 + 6895681677369 = 2535062^2 + 2625963^2 .

It is a cyclic number.

It is not a de Polignac number, because 13322221021213 - 2³³ = 13313631086621 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 (13322221021217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159297753 + ... + 159381361.

It is an arithmetic number, because the mean of its divisors is an integer number (902727763875).

Almost surely, 2^{13322221021213} is an apocalyptic number.

13322221021213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

13322221021213 is a deficient number, since it is larger than the sum of its proper divisors (1121423200787).

13322221021213 is a wasteful number, since it uses less digits than its factorization.

13322221021213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166032.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 13322221021213 its reverse (31212012222331), we get a palindrome (44534233243544).

The spelling of 13322221021213 in words is "thirteen trillion, three hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, two hundred thirteen".