21322321222232 has 16 divisors (see below), whose sum is σ = 39979422268800. Its totient is φ = 10661141950560.

The previous prime is 21322321222229. The next prime is 21322321222361. The reversal of 21322321222232 is 23222212322312.

It is a junction number, because it is equal to n+sod(n) for n = 21322321222195 and 21322321222204.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3333182 + ... + 7331762.

It is an arithmetic number, because the mean of its divisors is an integer number (2498713891800).

Almost surely, 2^{21322321222232} is an apocalyptic number.

It is an amenable number.

21322321222232 is a deficient number, since it is larger than the sum of its proper divisors (18657101046568).

21322321222232 is a wasteful number, since it uses less digits than its factorization.

21322321222232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4665146 (or 4665142 counting only the distinct ones).

The product of its digits is 13824, while the sum is 29.

Adding to 21322321222232 its reverse (23222212322312), we get a palindrome (44544533544544).

The spelling of 21322321222232 in words is "twenty-one trillion, three hundred twenty-two billion, three hundred twenty-one million, two hundred twenty-two thousand, two hundred thirty-two".