21232224304 has 20 divisors (see below), whose sum is σ = 41142663576. Its totient is φ = 10614762752.

The previous prime is 21232224287. The next prime is 21232224427. The reversal of 21232224304 is 40342223212.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52167 + ... + 212569.

Almost surely, 2^21232224304 is an apocalyptic number.

It is an amenable number.

21232224304 is a deficient number, since it is larger than the sum of its proper divisors (19910439272).

21232224304 is a wasteful number, since it uses less digits than its factorization.

21232224304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168684 (or 168678 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 21232224304 its reverse (40342223212), we get a palindrome (61574447516).

The spelling of 21232224304 in words is "twenty-one billion, two hundred thirty-two million, two hundred twenty-four thousand, three hundred four".