2021322330 has 128 divisors (see below), whose sum is σ = 5660755200. Its totient is φ = 512531712.

The previous prime is 2021322313. The next prime is 2021322383. The reversal of 2021322330 is 332231202.

It is a happy number.

2021322330 is a `hidden beast` number, since 202 + 132 + 2 + 330 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 522684 + ... + 526536.

It is an arithmetic number, because the mean of its divisors is an integer number (44224650).

Almost surely, 2^2021322330 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2021322330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2830377600).

2021322330 is an abundant number, since it is smaller than the sum of its proper divisors (3639432870).

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

2021322330 is a wasteful number, since it uses less digits than its factorization.

2021322330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3965 (or 3959 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 2021322330 is about 44959.1184299692. The cubic root of 2021322330 is about 1264.3826407407.

Adding to 2021322330 its reverse (332231202), we get a palindrome (2353553532).

The spelling of 2021322330 in words is "two billion, twenty-one million, three hundred twenty-two thousand, three hundred thirty".