21232223332 has 6 divisors (see below), whose sum is σ = 37156390838. Its totient is φ = 10616111664.

The previous prime is 21232223317. The next prime is 21232223377. The reversal of 21232223332 is 23332223212.

It can be written as a sum of positive squares in only one way, i.e., 20902219776 + 330003556 = 144576^2 + 18166^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21232223297 and 21232223306.

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 as a sum of consecutive naturals, namely, 2654027913 + ... + 2654027920.

Almost surely, 2^21232223332 is an apocalyptic number.

It is an amenable number.

21232223332 is a deficient number, since it is larger than the sum of its proper divisors (15924167506).

21232223332 is a wasteful number, since it uses less digits than its factorization.

21232223332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5308055837 (or 5308055835 counting only the distinct ones).

The product of its digits is 5184, while the sum is 25.

Adding to 21232223332 its reverse (23332223212), we get a palindrome (44564446544).

The spelling of 21232223332 in words is "twenty-one billion, two hundred thirty-two million, two hundred twenty-three thousand, three hundred thirty-two".