21330203331120 has 80 divisors (see below), whose sum is σ = 66133491277920. Its totient is φ = 5687205967872.

The previous prime is 21330203331103. The next prime is 21330203331127. The reversal of 21330203331120 is 2113330203312.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is not an unprimeable number, because it can be changed into a prime (21330203331127) 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 15 ways as a sum of consecutive naturals, for example, 5013469 + ... + 8233788.

It is an arithmetic number, because the mean of its divisors is an integer number (826668640974).

Almost surely, 2^{21330203331120} is an apocalyptic number.

21330203331120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21330203331120 is an abundant number, since it is smaller than the sum of its proper divisors (44803287946800).

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

21330203331120 is a wasteful number, since it uses less digits than its factorization.

21330203331120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13253982 (or 13253976 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 21330203331120 its reverse (2113330203312), we get a palindrome (23443533534432).

The spelling of 21330203331120 in words is "twenty-one trillion, three hundred thirty billion, two hundred three million, three hundred thirty-one thousand, one hundred twenty".