22530341221 has 4 divisors (see below), whose sum is σ = 22531219200. Its totient is φ = 22529463244.

The previous prime is 22530341161. The next prime is 22530341233. The reversal of 22530341221 is 12214303522.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 22530341221 - 2¹³ = 22530333029 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 (22530441221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399301 + ... + 452218.

It is an arithmetic number, because the mean of its divisors is an integer number (5632804800).

Almost surely, 2^22530341221 is an apocalyptic number.

It is an amenable number.

22530341221 is a deficient number, since it is larger than the sum of its proper divisors (877979).

22530341221 is an equidigital number, since it uses as much as digits as its factorization.

22530341221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877978.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 22530341221 its reverse (12214303522), we get a palindrome (34744644743).

The spelling of 22530341221 in words is "twenty-two billion, five hundred thirty million, three hundred forty-one thousand, two hundred twenty-one".