13221074 has 16 divisors (see below), whose sum is σ = 21232800. Its totient is φ = 6155424.

The previous prime is 13221059. The next prime is 13221077. The reversal of 13221074 is 47012231.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13221077) 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, 707 + ... + 5190.

It is an arithmetic number, because the mean of its divisors is an integer number (1327050).

Almost surely, 2^13221074 is an apocalyptic number.

13221074 is a deficient number, since it is larger than the sum of its proper divisors (8011726).

13221074 is a wasteful number, since it uses less digits than its factorization.

13221074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5977.

The product of its (nonzero) digits is 336, while the sum is 20.

The square root of 13221074 is about 3636.0794820796. The cubic root of 13221074 is about 236.4588530400.

The spelling of 13221074 in words is "thirteen million, two hundred twenty-one thousand, seventy-four".