2121332110320 has 80 divisors (see below), whose sum is σ = 6636461087520. Its totient is φ = 560498752512.

The previous prime is 2121332110319. The next prime is 2121332110361. The reversal of 2121332110320 is 230112331212.

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

It is a congruent number.

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, 40519179 + ... + 40571498.

It is an arithmetic number, because the mean of its divisors is an integer number (82955763594).

Almost surely, 2^{2121332110320} is an apocalyptic number.

2121332110320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2121332110320 is an abundant number, since it is smaller than the sum of its proper divisors (4515128977200).

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

2121332110320 is a wasteful number, since it uses less digits than its factorization.

2121332110320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 81090802 (or 81090796 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2121332110320 its reverse (230112331212), we get a palindrome (2351444441532).

The spelling of 2121332110320 in words is "two trillion, one hundred twenty-one billion, three hundred thirty-two million, one hundred ten thousand, three hundred twenty".