21222023230 has 8 divisors (see below), whose sum is σ = 38199641832. Its totient is φ = 8488809288.

The previous prime is 21222023227. The next prime is 21222023237. The reversal of 21222023230 is 3232022212.

21222023230 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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 = 21222023198 and 21222023207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21222023237) 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, 1061101152 + ... + 1061101171.

It is an arithmetic number, because the mean of its divisors is an integer number (4774955229).

Almost surely, 2^21222023230 is an apocalyptic number.

21222023230 is a deficient number, since it is larger than the sum of its proper divisors (16977618602).

21222023230 is a wasteful number, since it uses less digits than its factorization.

21222023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2122202330.

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

Adding to 21222023230 its reverse (3232022212), we get a palindrome (24454045442).

The spelling of 21222023230 in words is "twenty-one billion, two hundred twenty-two million, twenty-three thousand, two hundred thirty".