13013550221 has 8 divisors (see below), whose sum is σ = 15009075840. Its totient is φ = 11052136368.

The previous prime is 13013550217. The next prime is 13013550223. The reversal of 13013550221 is 12205531031.

It is a happy number.

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

It is not a de Polignac number, because 13013550221 - 2² = 13013550217 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013550223) 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, 8527121 + ... + 8528646.

It is an arithmetic number, because the mean of its divisors is an integer number (1876134480).

Almost surely, 2^13013550221 is an apocalyptic number.

It is an amenable number.

13013550221 is a deficient number, since it is larger than the sum of its proper divisors (1995525619).

13013550221 is a wasteful number, since it uses less digits than its factorization.

13013550221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17055883.

The product of its (nonzero) digits is 900, while the sum is 23.

The spelling of 13013550221 in words is "thirteen billion, thirteen million, five hundred fifty thousand, two hundred twenty-one".