2241423221 has 4 divisors (see below), whose sum is σ = 2242920000. Its totient is φ = 2239926444.

The previous prime is 2241423193. The next prime is 2241423227. The reversal of 2241423221 is 1223241422.

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 a de Polignac number, because none of the positive numbers 2^k-2241423221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2241423227) 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, 746141 + ... + 749138.

It is an arithmetic number, because the mean of its divisors is an integer number (560730000).

Almost surely, 2^2241423221 is an apocalyptic number.

It is an amenable number.

2241423221 is a deficient number, since it is larger than the sum of its proper divisors (1496779).

2241423221 is a wasteful number, since it uses less digits than its factorization.

2241423221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1496778.

The product of its digits is 1536, while the sum is 23.

The square root of 2241423221 is about 47343.6713933341. The cubic root of 2241423221 is about 1308.7035755421.

Adding to 2241423221 its reverse (1223241422), we get a palindrome (3464664643).

The spelling of 2241423221 in words is "two billion, two hundred forty-one million, four hundred twenty-three thousand, two hundred twenty-one".