21330200332320 has 96 divisors (see below), whose sum is σ = 73298324796480. Its totient is φ = 5170957655040.

The previous prime is 21330200332289. The next prime is 21330200332439. The reversal of 21330200332320 is 2323300203312.

It is a tau number, because it is divible by the number of its divisors (96).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2019900055 + ... + 2019910614.

It is an arithmetic number, because the mean of its divisors is an integer number (763524216630).

Almost surely, 2^{21330200332320} is an apocalyptic number.

21330200332320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21330200332320 is an abundant number, since it is smaller than the sum of its proper divisors (51968124464160).

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

21330200332320 is a wasteful number, since it uses less digits than its factorization.

21330200332320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4039810698 (or 4039810690 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 21330200332320 its reverse (2323300203312), we get a palindrome (23653500535632).

The spelling of 21330200332320 in words is "twenty-one trillion, three hundred thirty billion, two hundred million, three hundred thirty-two thousand, three hundred twenty".