224484266456221 has 2 divisors, whose sum is σ = 224484266456222. Its totient is φ = 224484266456220.

The previous prime is 224484266456071. The next prime is 224484266456251. The reversal of 224484266456221 is 122654662484422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 131137539340900 + 93346727115321 = 11451530^2 + 9661611^2 .

It is a cyclic number.

It is not a de Polignac number, because 224484266456221 - 2²⁷ = 224484132238493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224484266456251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112242133228110 + 112242133228111.

It is an arithmetic number, because the mean of its divisors is an integer number (112242133228111).

Almost surely, 2^{224484266456221} is an apocalyptic number.

It is an amenable number.

224484266456221 is a deficient number, since it is larger than the sum of its proper divisors (1).

224484266456221 is an equidigital number, since it uses as much as digits as its factorization.

224484266456221 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 70778880, while the sum is 58.

The spelling of 224484266456221 in words is "two hundred twenty-four trillion, four hundred eighty-four billion, two hundred sixty-six million, four hundred fifty-six thousand, two hundred twenty-one".