21323221330122 has 24 divisors (see below), whose sum is σ = 48917978346276. Its totient is φ = 6689638064256.

The previous prime is 21323221330091. The next prime is 21323221330123. The reversal of 21323221330122 is 22103312232312.

21323221330122 is a `hidden beast` number, since 2 + 1 + 3 + 2 + 322 + 1 + 330 + 1 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 21313835789481 + 9385540641 = 4616691^2 + 96879^2 .

It is not an unprimeable number, because it can be changed into a prime (21323221330123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34841864613 + ... + 34841865224.

Almost surely, 2^{21323221330122} is an apocalyptic number.

21323221330122 is an abundant number, since it is smaller than the sum of its proper divisors (27594757016154).

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

21323221330122 is a wasteful number, since it uses less digits than its factorization.

21323221330122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69683729862 (or 69683729859 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 21323221330122 its reverse (22103312232312), we get a palindrome (43426533562434).

The spelling of 21323221330122 in words is "twenty-one trillion, three hundred twenty-three billion, two hundred twenty-one million, three hundred thirty thousand, one hundred twenty-two".