13323221221229 has 2 divisors, whose sum is σ = 13323221221230. Its totient is φ = 13323221221228.

The previous prime is 13323221221187. The next prime is 13323221221243. The reversal of 13323221221229 is 92212212232331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10361948124004 + 2961273097225 = 3218998^2 + 1720835^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13323221221229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13323221221249) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6661610610614 + 6661610610615.

It is an arithmetic number, because the mean of its divisors is an integer number (6661610610615).

Almost surely, 2^{13323221221229} is an apocalyptic number.

It is an amenable number.

13323221221229 is a deficient number, since it is larger than the sum of its proper divisors (1).

13323221221229 is an equidigital number, since it uses as much as digits as its factorization.

13323221221229 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 35.

The spelling of 13323221221229 in words is "thirteen trillion, three hundred twenty-three billion, two hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-nine".