13221202013 has 4 divisors (see below), whose sum is σ = 13221444060. Its totient is φ = 13220959968.

The previous prime is 13221201989. The next prime is 13221202019. The reversal of 13221202013 is 31020212231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 9370627204 + 3850574809 = 96802^2 + 62053^2 .

It is a cyclic number.

It is not a de Polignac number, because 13221202013 - 2⁶ = 13221201949 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13221201982 and 13221202000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221202019) 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, 3881 + ... + 162657.

It is an arithmetic number, because the mean of its divisors is an integer number (3305361015).

Almost surely, 2^13221202013 is an apocalyptic number.

It is an amenable number.

13221202013 is a deficient number, since it is larger than the sum of its proper divisors (242047).

13221202013 is an equidigital number, since it uses as much as digits as its factorization.

13221202013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242046.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13221202013 its reverse (31020212231), we get a palindrome (44241414244).

The spelling of 13221202013 in words is "thirteen billion, two hundred twenty-one million, two hundred two thousand, thirteen".