2022212321 has 4 divisors (see below), whose sum is σ = 2022845700. Its totient is φ = 2021578944.

The previous prime is 2022212317. The next prime is 2022212323. The reversal of 2022212321 is 1232122202.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1318053025 + 704159296 = 36305^2 + 26536^2 .

It is a cyclic number.

It is not a de Polignac number, because 2022212321 - 2² = 2022212317 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2022212321.

It is not an unprimeable number, because it can be changed into a prime (2022212323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 311876 + ... + 318293.

It is an arithmetic number, because the mean of its divisors is an integer number (505711425).

Almost surely, 2^2022212321 is an apocalyptic number.

It is an amenable number.

2022212321 is a deficient number, since it is larger than the sum of its proper divisors (633379).

2022212321 is an equidigital number, since it uses as much as digits as its factorization.

2022212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633378.

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

The square root of 2022212321 is about 44969.0151215256. The cubic root of 2022212321 is about 1264.5681833166.

Adding to 2022212321 its reverse (1232122202), we get a palindrome (3254334523).

The spelling of 2022212321 in words is "two billion, twenty-two million, two hundred twelve thousand, three hundred twenty-one".