13033220221 has 32 divisors (see below), whose sum is σ = 16619765760. Its totient is φ = 9949775616.

The previous prime is 13033220203. The next prime is 13033220237. The reversal of 13033220221 is 12202233031.

13033220221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 13033220221 - 2⁷ = 13033220093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13033226221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2455056 + ... + 2460358.

It is an arithmetic number, because the mean of its divisors is an integer number (519367680).

Almost surely, 2^13033220221 is an apocalyptic number.

It is an amenable number.

13033220221 is a deficient number, since it is larger than the sum of its proper divisors (3586545539).

13033220221 is a wasteful number, since it uses less digits than its factorization.

13033220221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6433.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 13033220221 its reverse (12202233031), we get a palindrome (25235453252).

The spelling of 13033220221 in words is "thirteen billion, thirty-three million, two hundred twenty thousand, two hundred twenty-one".