13313020221 has 16 divisors (see below), whose sum is σ = 19855368000. Its totient is φ = 8815778064.

The previous prime is 13313020177. The next prime is 13313020271. The reversal of 13313020221 is 12202031331.

It is not a de Polignac number, because 13313020221 - 2⁶ = 13313020157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13313020194 and 13313020203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13313020271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1650591 + ... + 1658636.

It is an arithmetic number, because the mean of its divisors is an integer number (1240960500).

Almost surely, 2^13313020221 is an apocalyptic number.

It is an amenable number.

13313020221 is a deficient number, since it is larger than the sum of its proper divisors (6542347779).

13313020221 is a wasteful number, since it uses less digits than its factorization.

13313020221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3309385 (or 3309379 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13313020221 its reverse (12202031331), we get a palindrome (25515051552).

It can be divided in two parts, 133130 and 20221, that added together give a palindrome (153351).

The spelling of 13313020221 in words is "thirteen billion, three hundred thirteen million, twenty thousand, two hundred twenty-one".