13220213233 has 2 divisors, whose sum is σ = 13220213234. Its totient is φ = 13220213232.

The previous prime is 13220213219. The next prime is 13220213261. The reversal of 13220213233 is 33231202231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7014397504 + 6205815729 = 83752^2 + 78777^2 .

It is a cyclic number.

It is not a de Polignac number, because 13220213233 - 2²¹ = 13218116081 is a prime.

It is not a weakly prime, because it can be changed into another prime (13220213273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610106616 + 6610106617.

It is an arithmetic number, because the mean of its divisors is an integer number (6610106617).

Almost surely, 2^13220213233 is an apocalyptic number.

It is an amenable number.

13220213233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13220213233 is an equidigital number, since it uses as much as digits as its factorization.

13220213233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 13220213233 its reverse (33231202231), we get a palindrome (46451415464).

The spelling of 13220213233 in words is "thirteen billion, two hundred twenty million, two hundred thirteen thousand, two hundred thirty-three".