21023221330322 has 8 divisors (see below), whose sum is σ = 31735690798476. Its totient is φ = 10444657730832.

The previous prime is 21023221330259. The next prime is 21023221330333. The reversal of 21023221330322 is 22303312232012.

It can be written as a sum of positive squares in 2 ways, for example, as 18278198640601 + 2745022689721 = 4275301^2 + 1656811^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 21023221330291 and 21023221330300.

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, 33476466773 + ... + 33476467400.

Almost surely, 2^{21023221330322} is an apocalyptic number.

21023221330322 is a deficient number, since it is larger than the sum of its proper divisors (10712469468154).

21023221330322 is a wasteful number, since it uses less digits than its factorization.

21023221330322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66952934332.

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

Adding to 21023221330322 its reverse (22303312232012), we get a palindrome (43326533562334).

The spelling of 21023221330322 in words is "twenty-one trillion, twenty-three billion, two hundred twenty-one million, three hundred thirty thousand, three hundred twenty-two".