13320223211021 has 2 divisors, whose sum is σ = 13320223211022. Its totient is φ = 13320223211020.

The previous prime is 13320223211003. The next prime is 13320223211023. The reversal of 13320223211021 is 12011232202331.

13320223211021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12099363955396 + 1220859255625 = 3478414^2 + 1104925^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13320223211021 is a prime.

Together with 13320223211023, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13320223211023) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6660111605510 + 6660111605511.

It is an arithmetic number, because the mean of its divisors is an integer number (6660111605511).

Almost surely, 2^{13320223211021} is an apocalyptic number.

It is an amenable number.

13320223211021 is a deficient number, since it is larger than the sum of its proper divisors (1).

13320223211021 is an equidigital number, since it uses as much as digits as its factorization.

13320223211021 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 13320223211021 its reverse (12011232202331), we get a palindrome (25331455413352).

The spelling of 13320223211021 in words is "thirteen trillion, three hundred twenty billion, two hundred twenty-three million, two hundred eleven thousand, twenty-one".