13221030 has 32 divisors (see below), whose sum is σ = 32170464. Its totient is φ = 3476736.

The previous prime is 13221029. The next prime is 13221031. The reversal of 13221030 is 3012231.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (13221029) and next prime (13221031).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13220997 and 13221015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221031) 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 15 ways as a sum of consecutive naturals, for example, 829 + ... + 5208.

It is an arithmetic number, because the mean of its divisors is an integer number (1005327).

Almost surely, 2^13221030 is an apocalyptic number.

13221030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221030 is an abundant number, since it is smaller than the sum of its proper divisors (18949434).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13221030 is a wasteful number, since it uses less digits than its factorization.

13221030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6120.

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

The square root of 13221030 is about 3636.0734316017. The cubic root of 13221030 is about 236.4585907264.

Adding to 13221030 its reverse (3012231), we get a palindrome (16233261).

The spelling of 13221030 in words is "thirteen million, two hundred twenty-one thousand, thirty".