12221583 has 16 divisors (see below), whose sum is σ = 17884800. Its totient is φ = 7362080.

The previous prime is 12221543. The next prime is 12221593. The reversal of 12221583 is 38512221.

It is not a de Polignac number, because 12221583 - 2⁶ = 12221519 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221543) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4873 + ... + 6941.

It is an arithmetic number, because the mean of its divisors is an integer number (1117800).

Almost surely, 2^12221583 is an apocalyptic number.

12221583 is a deficient number, since it is larger than the sum of its proper divisors (5663217).

12221583 is a wasteful number, since it uses less digits than its factorization.

12221583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2262.

The product of its digits is 960, while the sum is 24.

The square root of 12221583 is about 3495.9380715339. The cubic root of 12221583 is about 230.3434252066.

The spelling of 12221583 in words is "twelve million, two hundred twenty-one thousand, five hundred eighty-three".