2021321332 has 12 divisors (see below), whose sum is σ = 3565166080. Its totient is φ = 1002702456.

The previous prime is 2021321299. The next prime is 2021321333. The reversal of 2021321332 is 2331231202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021321333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1988982 + ... + 1989997.

Almost surely, 2^2021321332 is an apocalyptic number.

It is an amenable number.

2021321332 is a deficient number, since it is larger than the sum of its proper divisors (1543844748).

2021321332 is a wasteful number, since it uses less digits than its factorization.

2021321332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3979110 (or 3979108 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2021321332 is about 44959.1073309958. The cubic root of 2021321332 is about 1264.3824326501.

Adding to 2021321332 its reverse (2331231202), we get a palindrome (4352552534).

The spelling of 2021321332 in words is "two billion, twenty-one million, three hundred twenty-one thousand, three hundred thirty-two".