21322232230 has 64 divisors (see below), whose sum is σ = 42068750976. Its totient is φ = 7733376000.

The previous prime is 21322232213. The next prime is 21322232237. The reversal of 21322232230 is 3223222312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21322232237) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2589520 + ... + 2597740.

It is an arithmetic number, because the mean of its divisors is an integer number (657324234).

Almost surely, 2^21322232230 is an apocalyptic number.

21322232230 is a deficient number, since it is larger than the sum of its proper divisors (20746518746).

21322232230 is a wasteful number, since it uses less digits than its factorization.

21322232230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8593.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 21322232230 its reverse (3223222312), we get a palindrome (24545454542).

The spelling of 21322232230 in words is "twenty-one billion, three hundred twenty-two million, two hundred thirty-two thousand, two hundred thirty".