22434221 has 8 divisors (see below), whose sum is σ = 22821888. Its totient is φ = 22050000.

The previous prime is 22434199. The next prime is 22434227. The reversal of 22434221 is 12243422.

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 22434221 - 2¹⁰ = 22433197 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22434193 and 22434202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22434227) 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, 14516 + ... + 15986.

It is an arithmetic number, because the mean of its divisors is an integer number (2852736).

Almost surely, 2^22434221 is an apocalyptic number.

It is an amenable number.

22434221 is a deficient number, since it is larger than the sum of its proper divisors (387667).

22434221 is a wasteful number, since it uses less digits than its factorization.

22434221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1723.

The product of its digits is 768, while the sum is 20.

The square root of 22434221 is about 4736.4776997258. The cubic root of 22434221 is about 282.0354272008.

Adding to 22434221 its reverse (12243422), we get a palindrome (34677643).

The spelling of 22434221 in words is "twenty-two million, four hundred thirty-four thousand, two hundred twenty-one".