224232444421 has 2 divisors, whose sum is σ = 224232444422. Its totient is φ = 224232444420.

The previous prime is 224232444407. The next prime is 224232444439. The reversal of 224232444421 is 124444232422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 157970477025 + 66261967396 = 397455^2 + 257414^2 .

It is a cyclic number.

It is not a de Polignac number, because 224232444421 - 2⁹ = 224232443909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224232444461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112116222210 + 112116222211.

It is an arithmetic number, because the mean of its divisors is an integer number (112116222211).

Almost surely, 2^224232444421 is an apocalyptic number.

It is an amenable number.

224232444421 is a deficient number, since it is larger than the sum of its proper divisors (1).

224232444421 is an equidigital number, since it uses as much as digits as its factorization.

224232444421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 98304, while the sum is 34.

Adding to 224232444421 its reverse (124444232422), we get a palindrome (348676676843).

The spelling of 224232444421 in words is "two hundred twenty-four billion, two hundred thirty-two million, four hundred forty-four thousand, four hundred twenty-one".