21022331230 has 8 divisors (see below), whose sum is σ = 37840196232. Its totient is φ = 8408932488.

The previous prime is 21022331219. The next prime is 21022331233. The reversal of 21022331230 is 3213322012.

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 = 21022331198 and 21022331207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21022331233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1051116552 + ... + 1051116571.

It is an arithmetic number, because the mean of its divisors is an integer number (4730024529).

Almost surely, 2^21022331230 is an apocalyptic number.

21022331230 is a deficient number, since it is larger than the sum of its proper divisors (16817865002).

21022331230 is a wasteful number, since it uses less digits than its factorization.

21022331230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2102233130.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21022331230 its reverse (3213322012), we get a palindrome (24235653242).

It can be divided in two parts, 2102 and 2331230, that added together give a palindrome (2333332).

The spelling of 21022331230 in words is "twenty-one billion, twenty-two million, three hundred thirty-one thousand, two hundred thirty".