22183221 has 8 divisors (see below), whose sum is σ = 29882944. Its totient is φ = 14636160.

The previous prime is 22183219. The next prime is 22183277. The reversal of 22183221 is 12238122.

It is a happy number.

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

It is not a de Polignac number, because 22183221 - 2¹ = 22183219 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22193221) 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, 37825 + ... + 38406.

It is an arithmetic number, because the mean of its divisors is an integer number (3735368).

Almost surely, 2^22183221 is an apocalyptic number.

It is an amenable number.

22183221 is a deficient number, since it is larger than the sum of its proper divisors (7699723).

22183221 is an equidigital number, since it uses as much as digits as its factorization.

22183221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76331.

The product of its digits is 384, while the sum is 21.

The square root of 22183221 is about 4709.9066869737. The cubic root of 22183221 is about 280.9796509287.

The spelling of 22183221 in words is "twenty-two million, one hundred eighty-three thousand, two hundred twenty-one".