22103030221 has 4 divisors (see below), whose sum is σ = 22123824352. Its totient is φ = 22082236092.

The previous prime is 22103030197. The next prime is 22103030263. The reversal of 22103030221 is 12203030122.

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 22103030221 - 2⁵ = 22103030189 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22103030195 and 22103030204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22103030921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10395471 + ... + 10397596.

It is an arithmetic number, because the mean of its divisors is an integer number (5530956088).

Almost surely, 2^22103030221 is an apocalyptic number.

It is an amenable number.

22103030221 is a deficient number, since it is larger than the sum of its proper divisors (20794131).

22103030221 is a wasteful number, since it uses less digits than its factorization.

22103030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20794130.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22103030221 its reverse (12203030122), we get a palindrome (34306060343).

Subtracting from 22103030221 its reverse (12203030122), we obtain a palindrome (9900000099).

The spelling of 22103030221 in words is "twenty-two billion, one hundred three million, thirty thousand, two hundred twenty-one".