224510511221 has 2 divisors, whose sum is σ = 224510511222. Its totient is φ = 224510511220.

The previous prime is 224510511217. The next prime is 224510511229. The reversal of 224510511221 is 122115015422.

It is a happy number.

224510511221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 182888799025 + 41621712196 = 427655^2 + 204014^2 .

It is a cyclic number.

It is not a de Polignac number, because 224510511221 - 2² = 224510511217 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224510511229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112255255610 + 112255255611.

It is an arithmetic number, because the mean of its divisors is an integer number (112255255611).

Almost surely, 2^224510511221 is an apocalyptic number.

It is an amenable number.

224510511221 is a deficient number, since it is larger than the sum of its proper divisors (1).

224510511221 is an equidigital number, since it uses as much as digits as its factorization.

224510511221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 224510511221 its reverse (122115015422), we get a palindrome (346625526643).

The spelling of 224510511221 in words is "two hundred twenty-four billion, five hundred ten million, five hundred eleven thousand, two hundred twenty-one".