13353631221 has 8 divisors (see below), whose sum is σ = 20348390464. Its totient is φ = 7630646400.

The previous prime is 13353631201. The next prime is 13353631259. The reversal of 13353631221 is 12213635331.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13353631221 - 2¹⁰ = 13353630197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13353631201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 317943580 + ... + 317943621.

It is an arithmetic number, because the mean of its divisors is an integer number (2543548808).

Almost surely, 2^13353631221 is an apocalyptic number.

It is an amenable number.

13353631221 is a deficient number, since it is larger than the sum of its proper divisors (6994759243).

13353631221 is an equidigital number, since it uses as much as digits as its factorization.

13353631221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 635887211.

The product of its digits is 9720, while the sum is 30.

The spelling of 13353631221 in words is "thirteen billion, three hundred fifty-three million, six hundred thirty-one thousand, two hundred twenty-one".