2021221322 has 8 divisors (see below), whose sum is σ = 3032022756. Its totient is φ = 1010547072.

The previous prime is 2021221313. The next prime is 2021221331. The reversal of 2021221322 is 2231221202.

It is an interprime number because it is at equal distance from previous prime (2021221313) and next prime (2021221331).

It can be written as a sum of positive squares in 2 ways, for example, as 1669621321 + 351600001 = 40861^2 + 18751^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 2021221322.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46298 + ... + 78650.

Almost surely, 2^2021221322 is an apocalyptic number.

2021221322 is a deficient number, since it is larger than the sum of its proper divisors (1010801434).

2021221322 is a wasteful number, since it uses less digits than its factorization.

2021221322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63592.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2021221322 is about 44957.9950843006. The cubic root of 2021221322 is about 1264.3615794635.

Adding to 2021221322 its reverse (2231221202), we get a palindrome (4252442524).

The spelling of 2021221322 in words is "two billion, twenty-one million, two hundred twenty-one thousand, three hundred twenty-two".