13221294 has 16 divisors (see below), whose sum is σ = 26716368. Its totient is φ = 4361472.

The previous prime is 13221293. The next prime is 13221317. The reversal of 13221294 is 49212231.

It is a super-3 number, since 3×13221294³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13221293) 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, 10777 + ... + 11940.

It is an arithmetic number, because the mean of its divisors is an integer number (1669773).

Almost surely, 2^13221294 is an apocalyptic number.

13221294 is an abundant number, since it is smaller than the sum of its proper divisors (13495074).

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

13221294 is a wasteful number, since it uses less digits than its factorization.

13221294 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22819.

The product of its digits is 864, while the sum is 24.

The square root of 13221294 is about 3636.1097343177. The cubic root of 13221294 is about 236.4601645991.

The spelling of 13221294 in words is "thirteen million, two hundred twenty-one thousand, two hundred ninety-four".