13221001033 has 2 divisors, whose sum is σ = 13221001034. Its totient is φ = 13221001032.

The previous prime is 13221001007. The next prime is 13221001043. The reversal of 13221001033 is 33010012231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12451881744 + 769119289 = 111588^2 + 27733^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13221001033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13221000998 and 13221001016.

It is not a weakly prime, because it can be changed into another prime (13221001043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6610500516 + 6610500517.

It is an arithmetic number, because the mean of its divisors is an integer number (6610500517).

Almost surely, 2^13221001033 is an apocalyptic number.

It is an amenable number.

13221001033 is a deficient number, since it is larger than the sum of its proper divisors (1).

13221001033 is an equidigital number, since it uses as much as digits as its factorization.

13221001033 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13221001033 its reverse (33010012231), we get a palindrome (46231013264).

The spelling of 13221001033 in words is "thirteen billion, two hundred twenty-one million, one thousand, thirty-three".