224433012213821 has 2 divisors, whose sum is σ = 224433012213822. Its totient is φ = 224433012213820.

The previous prime is 224433012213811. The next prime is 224433012213869. The reversal of 224433012213821 is 128312210334422.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 137280144988921 + 87152867224900 = 11716661^2 + 9335570^2 .

It is a cyclic number.

It is not a de Polignac number, because 224433012213821 - 2⁶ = 224433012213757 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224433012213811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112216506106910 + 112216506106911.

It is an arithmetic number, because the mean of its divisors is an integer number (112216506106911).

Almost surely, 2^{224433012213821} is an apocalyptic number.

It is an amenable number.

224433012213821 is a deficient number, since it is larger than the sum of its proper divisors (1).

224433012213821 is an equidigital number, since it uses as much as digits as its factorization.

224433012213821 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 224433012213821 in words is "two hundred twenty-four trillion, four hundred thirty-three billion, twelve million, two hundred thirteen thousand, eight hundred twenty-one".