12234221 has 8 divisors (see below), whose sum is σ = 12537888. Its totient is φ = 11934000.

The previous prime is 12234217. The next prime is 12234239. The reversal of 12234221 is 12243221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12234221 - 2² = 12234217 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12234221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12234281) 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, 7226 + ... + 8756.

It is an arithmetic number, because the mean of its divisors is an integer number (1567236).

Almost surely, 2^12234221 is an apocalyptic number.

It is an amenable number.

12234221 is a deficient number, since it is larger than the sum of its proper divisors (303667).

12234221 is a wasteful number, since it uses less digits than its factorization.

12234221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1723.

The product of its digits is 192, while the sum is 17.

The square root of 12234221 is about 3497.7451307950. The cubic root of 12234221 is about 230.4227951039.

Adding to 12234221 its reverse (12243221), we get a palindrome (24477442).

It can be divided in two parts, 122 and 34221, that added together give a palindrome (34343).

The spelling of 12234221 in words is "twelve million, two hundred thirty-four thousand, two hundred twenty-one".