21303230222 has 8 divisors (see below), whose sum is σ = 31956320136. Its totient is φ = 10651123512.

The previous prime is 21303230219. The next prime is 21303230227. The reversal of 21303230222 is 22203230312.

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

It is a junction number, because it is equal to n+sod(n) for n = 21303230194 and 21303230203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21303230227) 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, 189008 + ... + 279875.

It is an arithmetic number, because the mean of its divisors is an integer number (3994540017).

Almost surely, 2^21303230222 is an apocalyptic number.

21303230222 is a deficient number, since it is larger than the sum of its proper divisors (10653089914).

21303230222 is a wasteful number, since it uses less digits than its factorization.

21303230222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 491602.

The product of its (nonzero) digits is 864, while the sum is 20.

Adding to 21303230222 its reverse (22203230312), we get a palindrome (43506460534).

The spelling of 21303230222 in words is "twenty-one billion, three hundred three million, two hundred thirty thousand, two hundred twenty-two".