2201122321 has 4 divisors (see below), whose sum is σ = 2201393700. Its totient is φ = 2200850944.

The previous prime is 2201122309. The next prime is 2201122337. The reversal of 2201122321 is 1232211022.

It is a happy number.

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 1744231696 + 456890625 = 41764^2 + 21375^2 .

It is a cyclic number.

It is not a de Polignac number, because 2201122321 - 2¹⁹ = 2200598033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2201122295 and 2201122304.

It is not an unprimeable number, because it can be changed into a prime (2201122361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 123136 + ... + 139873.

It is an arithmetic number, because the mean of its divisors is an integer number (550348425).

Almost surely, 2^2201122321 is an apocalyptic number.

It is an amenable number.

2201122321 is a deficient number, since it is larger than the sum of its proper divisors (271379).

2201122321 is an equidigital number, since it uses as much as digits as its factorization.

2201122321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 271378.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 2201122321 is about 46916.1200548383. The cubic root of 2201122321 is about 1300.8125730554.

Adding to 2201122321 its reverse (1232211022), we get a palindrome (3433333343).

The spelling of 2201122321 in words is "two billion, two hundred one million, one hundred twenty-two thousand, three hundred twenty-one".