13221350 has 24 divisors (see below), whose sum is σ = 24708240. Its totient is φ = 5263520.

The previous prime is 13221349. The next prime is 13221353. The reversal of 13221350 is 5312231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221353) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12959 + ... + 13941.

It is an arithmetic number, because the mean of its divisors is an integer number (1029510).

Almost surely, 2^13221350 is an apocalyptic number.

13221350 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13221350 is a deficient number, since it is larger than the sum of its proper divisors (11486890).

13221350 is a wasteful number, since it uses less digits than its factorization.

13221350 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1264 (or 1259 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 13221350 is about 3636.1174348472. The cubic root of 13221350 is about 236.4604984481.

Adding to 13221350 its reverse (5312231), we get a palindrome (18533581).

The spelling of 13221350 in words is "thirteen million, two hundred twenty-one thousand, three hundred fifty".