21223232324 has 24 divisors (see below), whose sum is σ = 42478719360. Its totient is φ = 9088759296.

The previous prime is 21223232311. The next prime is 21223232347. The reversal of 21223232324 is 42323232212.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21223232293 and 21223232302.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250397 + ... + 324260.

It is an arithmetic number, because the mean of its divisors is an integer number (1769946640).

Almost surely, 2^21223232324 is an apocalyptic number.

It is an amenable number.

21223232324 is an abundant number, since it is smaller than the sum of its proper divisors (21255487036).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21223232324 is a wasteful number, since it uses less digits than its factorization.

21223232324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 575987 (or 575985 counting only the distinct ones).

The product of its digits is 6912, while the sum is 26.

Adding to 21223232324 its reverse (42323232212), we get a palindrome (63546464536).

The spelling of 21223232324 in words is "twenty-one billion, two hundred twenty-three million, two hundred thirty-two thousand, three hundred twenty-four".