2021991802332 has 48 divisors (see below), whose sum is σ = 4760013041952. Its totient is φ = 667993374720.

The previous prime is 2021991802321. The next prime is 2021991802343. The reversal of 2021991802332 is 2332081991202.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (2021991802321) and next prime (2021991802343).

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, 31211238 + ... + 31275954.

It is an arithmetic number, because the mean of its divisors is an integer number (99166938374).

Almost surely, 2^{2021991802332} is an apocalyptic number.

It is an amenable number.

2021991802332 is an abundant number, since it is smaller than the sum of its proper divisors (2738021239620).

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

2021991802332 is a wasteful number, since it uses less digits than its factorization.

2021991802332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87878 (or 87876 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 42.

The spelling of 2021991802332 in words is "two trillion, twenty-one billion, nine hundred ninety-one million, eight hundred two thousand, three hundred thirty-two".