13220103221 has 8 divisors (see below), whose sum is σ = 14271018720. Its totient is φ = 12174042672.

The previous prime is 13220103217. The next prime is 13220103257. The reversal of 13220103221 is 12230102231.

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

It is a cyclic number.

It is not a de Polignac number, because 13220103221 - 2² = 13220103217 is a prime.

It is a super-2 number, since 2×13220103221² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13220103221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13220133221) 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, 1208075 + ... + 1218968.

It is an arithmetic number, because the mean of its divisors is an integer number (1783877340).

Almost surely, 2^13220103221 is an apocalyptic number.

It is an amenable number.

13220103221 is a deficient number, since it is larger than the sum of its proper divisors (1050915499).

13220103221 is a wasteful number, since it uses less digits than its factorization.

13220103221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2427475.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13220103221 its reverse (12230102231), we get a palindrome (25450205452).

It can be divided in two parts, 1322010 and 3221, that added together give a palindrome (1325231).

The spelling of 13220103221 in words is "thirteen billion, two hundred twenty million, one hundred three thousand, two hundred twenty-one".