2224422221 has 4 divisors (see below), whose sum is σ = 2542196832. Its totient is φ = 1906647612.

The previous prime is 2224422191. The next prime is 2224422269. The reversal of 2224422221 is 1222244222.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2224422221 - 2¹⁰ = 2224421197 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2224422281) by changing a digit.

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, 158887295 + ... + 158887308.

It is an arithmetic number, because the mean of its divisors is an integer number (635549208).

Almost surely, 2^2224422221 is an apocalyptic number.

It is an amenable number.

2224422221 is a deficient number, since it is larger than the sum of its proper divisors (317774611).

2224422221 is an equidigital number, since it uses as much as digits as its factorization.

2224422221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317774610.

The product of its digits is 2048, while the sum is 23.

The square root of 2224422221 is about 47163.7808174875. The cubic root of 2224422221 is about 1305.3863735595.

Adding to 2224422221 its reverse (1222244222), we get a palindrome (3446666443).

The spelling of 2224422221 in words is "two billion, two hundred twenty-four million, four hundred twenty-two thousand, two hundred twenty-one".