13030221 has 8 divisors (see below), whose sum is σ = 17542720. Its totient is φ = 8602272.

The previous prime is 13030217. The next prime is 13030229. The reversal of 13030221 is 12203031.

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 13030221 - 2² = 13030217 is a prime.

It is a Duffinian number.

It is a plaindrome in base 12.

It is a junction number, because it is equal to n+sod(n) for n = 13030197 and 13030206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13030229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20776 + ... + 21393.

It is an arithmetic number, because the mean of its divisors is an integer number (2192840).

Almost surely, 2^13030221 is an apocalyptic number.

It is an amenable number.

13030221 is a deficient number, since it is larger than the sum of its proper divisors (4512499).

13030221 is a wasteful number, since it uses less digits than its factorization.

13030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42275.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 13030221 is about 3609.7397413110. The cubic root of 13030221 is about 235.3155320865.

Adding to 13030221 its reverse (12203031), we get a palindrome (25233252).

The spelling of 13030221 in words is "thirteen million, thirty thousand, two hundred twenty-one".