2021321331232 has 48 divisors (see below), whose sum is σ = 4592128125312. Its totient is φ = 857870069760.

The previous prime is 2021321331229. The next prime is 2021321331247. The reversal of 2021321331232 is 2321331231202.

It is a junction number, because it is equal to n+sod(n) for n = 2021321331197 and 2021321331206.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43781569 + ... + 43827712.

It is an arithmetic number, because the mean of its divisors is an integer number (95669335944).

Almost surely, 2^{2021321331232} is an apocalyptic number.

It is an amenable number.

2021321331232 is an abundant number, since it is smaller than the sum of its proper divisors (2570806794080).

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

2021321331232 is a wasteful number, since it uses less digits than its factorization.

2021321331232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87609401 (or 87609393 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 2021321331232 its reverse (2321331231202), we get a palindrome (4342652562434).

The spelling of 2021321331232 in words is "two trillion, twenty-one billion, three hundred twenty-one million, three hundred thirty-one thousand, two hundred thirty-two".