21232223306 has 16 divisors (see below), whose sum is σ = 36400833216. Its totient is φ = 9098840256.

The previous prime is 21232223297. The next prime is 21232223317. The reversal of 21232223306 is 60332223212.

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, 165965 + ... + 264591.

It is an arithmetic number, because the mean of its divisors is an integer number (2275052076).

Almost surely, 2^21232223306 is an apocalyptic number.

21232223306 is a deficient number, since it is larger than the sum of its proper divisors (15168609910).

21232223306 is a wasteful number, since it uses less digits than its factorization.

21232223306 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114013.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 21232223306 its reverse (60332223212), we get a palindrome (81564446518).

The spelling of 21232223306 in words is "twenty-one billion, two hundred thirty-two million, two hundred twenty-three thousand, three hundred six".