13335220001 has 2 divisors, whose sum is σ = 13335220002. Its totient is φ = 13335220000.

The previous prime is 13335219881. The next prime is 13335220007. The reversal of 13335220001 is 10002253331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13110250000 + 224970001 = 114500^2 + 14999^2 .

It is a cyclic number.

It is not a de Polignac number, because 13335220001 - 2¹⁰ = 13335218977 is a prime.

It is not a weakly prime, because it can be changed into another prime (13335220007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6667610000 + 6667610001.

It is an arithmetic number, because the mean of its divisors is an integer number (6667610001).

Almost surely, 2^13335220001 is an apocalyptic number.

It is an amenable number.

13335220001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13335220001 is an equidigital number, since it uses as much as digits as its factorization.

13335220001 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 540, while the sum is 20.

Adding to 13335220001 its reverse (10002253331), we get a palindrome (23337473332).

The spelling of 13335220001 in words is "thirteen billion, three hundred thirty-five million, two hundred twenty thousand, one".