2021521322 has 16 divisors (see below), whose sum is σ = 3065634432. Its totient is φ = 999657600.

The previous prime is 2021521319. The next prime is 2021521367. The reversal of 2021521322 is 2231251202.

It is a junction number, because it is equal to n+sod(n) for n = 2021521294 and 2021521303.

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, 397697 + ... + 402747.

It is an arithmetic number, because the mean of its divisors is an integer number (191602152).

Almost surely, 2^2021521322 is an apocalyptic number.

2021521322 is a deficient number, since it is larger than the sum of its proper divisors (1044113110).

2021521322 is a wasteful number, since it uses less digits than its factorization.

2021521322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7213.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 2021521322 is about 44961.3314082223. The cubic root of 2021521322 is about 1264.4241307050.

Adding to 2021521322 its reverse (2231251202), we get a palindrome (4252772524).

The spelling of 2021521322 in words is "two billion, twenty-one million, five hundred twenty-one thousand, three hundred twenty-two".