22230003221 has 4 divisors (see below), whose sum is σ = 22234368000. Its totient is φ = 22225638444.

The previous prime is 22230003209. The next prime is 22230003223. The reversal of 22230003221 is 12230003222.

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 22230003221 - 2¹⁸ = 22229741077 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 22230003221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22230003223) 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, 2174741 + ... + 2184938.

It is an arithmetic number, because the mean of its divisors is an integer number (5558592000).

Almost surely, 2^22230003221 is an apocalyptic number.

It is an amenable number.

22230003221 is a deficient number, since it is larger than the sum of its proper divisors (4364779).

22230003221 is an equidigital number, since it uses as much as digits as its factorization.

22230003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4364778.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 22230003221 its reverse (12230003222), we get a palindrome (34460006443).

Subtracting from 22230003221 its reverse (12230003222), we obtain a palindrome (9999999999).

The spelling of 22230003221 in words is "twenty-two billion, two hundred thirty million, three thousand, two hundred twenty-one".