2224441421 has 2 divisors, whose sum is σ = 2224441422. Its totient is φ = 2224441420.

The previous prime is 2224441409. The next prime is 2224441451. The reversal of 2224441421 is 1241444222.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1670356900 + 554084521 = 40870^2 + 23539^2 .

It is a cyclic number.

It is not a de Polignac number, because 2224441421 - 2⁶ = 2224441357 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2224441451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1112220710 + 1112220711.

It is an arithmetic number, because the mean of its divisors is an integer number (1112220711).

Almost surely, 2^2224441421 is an apocalyptic number.

It is an amenable number.

2224441421 is a deficient number, since it is larger than the sum of its proper divisors (1).

2224441421 is an equidigital number, since it uses as much as digits as its factorization.

2224441421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4096, while the sum is 26.

The square root of 2224441421 is about 47163.9843630709. The cubic root of 2224441421 is about 1305.3901293432.

Adding to 2224441421 its reverse (1241444222), we get a palindrome (3465885643).

The spelling of 2224441421 in words is "two billion, two hundred twenty-four million, four hundred forty-one thousand, four hundred twenty-one".