21332242232320 has 88 divisors (see below), whose sum is σ = 52555420471464. Its totient is φ = 8302277984256.

The previous prime is 21332242232291. The next prime is 21332242232351. The reversal of 21332242232320 is 2323224223312.

It can be written as a sum of positive squares in 4 ways, for example, as 10244301251584 + 11087940980736 = 3200672^2 + 3329856^2 .

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 56113987 + ... + 56492866.

Almost surely, 2^{21332242232320} is an apocalyptic number.

21332242232320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21332242232320 is an abundant number, since it is smaller than the sum of its proper divisors (31223178239144).

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

21332242232320 is a wasteful number, since it uses less digits than its factorization.

21332242232320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112606915 (or 112606897 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 31.

Adding to 21332242232320 its reverse (2323224223312), we get a palindrome (23655466455632).

The spelling of 21332242232320 in words is "twenty-one trillion, three hundred thirty-two billion, two hundred forty-two million, two hundred thirty-two thousand, three hundred twenty".