22223003221 has 4 divisors (see below), whose sum is σ = 22223315200. Its totient is φ = 22222691244.

The previous prime is 22223003207. The next prime is 22223003261. The reversal of 22223003221 is 12230032222.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 22223003221 - 2⁷ = 22223003093 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 (22223003261) 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, 9100 + ... + 211018.

It is an arithmetic number, because the mean of its divisors is an integer number (5555828800).

Almost surely, 2^22223003221 is an apocalyptic number.

It is an amenable number.

22223003221 is a deficient number, since it is larger than the sum of its proper divisors (311979).

22223003221 is a wasteful number, since it uses less digits than its factorization.

22223003221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311978.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 22223003221 its reverse (12230032222), we get a palindrome (34453035443).

The spelling of 22223003221 in words is "twenty-two billion, two hundred twenty-three million, three thousand, two hundred twenty-one".