2223441421 has 2 divisors, whose sum is σ = 2223441422. Its totient is φ = 2223441420.

The previous prime is 2223441403. The next prime is 2223441457. The reversal of 2223441421 is 1241443222.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1679852196 + 543589225 = 40986^2 + 23315^2 .

It is a cyclic number.

It is not a de Polignac number, because 2223441421 - 2¹³ = 2223433229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2223441461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1111720710 + 1111720711.

It is an arithmetic number, because the mean of its divisors is an integer number (1111720711).

Almost surely, 2^2223441421 is an apocalyptic number.

It is an amenable number.

2223441421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2223441421 is an equidigital number, since it uses as much as digits as its factorization.

2223441421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3072, while the sum is 25.

The square root of 2223441421 is about 47153.3818617499. The cubic root of 2223441421 is about 1305.1944868508.

Adding to 2223441421 its reverse (1241443222), we get a palindrome (3464884643).

The spelling of 2223441421 in words is "two billion, two hundred twenty-three million, four hundred forty-one thousand, four hundred twenty-one".