2021531322 has 16 divisors (see below), whose sum is σ = 4141674432. Its totient is φ = 657408480.

The previous prime is 2021531321. The next prime is 2021531327. The reversal of 2021531322 is 2231351202.

It is not an unprimeable number, because it can be changed into a prime (2021531321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4108558 + ... + 4109049.

It is an arithmetic number, because the mean of its divisors is an integer number (258854652).

Almost surely, 2^2021531322 is an apocalyptic number.

2021531322 is an abundant number, since it is smaller than the sum of its proper divisors (2120143110).

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

2021531322 is a wasteful number, since it uses less digits than its factorization.

2021531322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8217653.

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 2021531322 is about 44961.4426147560. The cubic root of 2021531322 is about 1264.4262156398.

Adding to 2021531322 its reverse (2231351202), we get a palindrome (4252882524).

The spelling of 2021531322 in words is "two billion, twenty-one million, five hundred thirty-one thousand, three hundred twenty-two".