21332301020 has 48 divisors (see below), whose sum is σ = 45044475840. Its totient is φ = 8486032896.

The previous prime is 21332301007. The next prime is 21332301041. The reversal of 21332301020 is 2010323312.

It is a self number, because there is not a number n which added to its sum of digits gives 21332301020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4718321 + ... + 4722839.

It is an arithmetic number, because the mean of its divisors is an integer number (938426580).

Almost surely, 2^21332301020 is an apocalyptic number.

21332301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21332301020 is an abundant number, since it is smaller than the sum of its proper divisors (23712174820).

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

21332301020 is a wasteful number, since it uses less digits than its factorization.

21332301020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5774 (or 5772 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21332301020 its reverse (2010323312), we get a palindrome (23342624332).

The spelling of 21332301020 in words is "twenty-one billion, three hundred thirty-two million, three hundred one thousand, twenty".