224414240221 has 2 divisors, whose sum is σ = 224414240222. Its totient is φ = 224414240220.

The previous prime is 224414240137. The next prime is 224414240227. The reversal of 224414240221 is 122042414422.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 195376376196 + 29037864025 = 442014^2 + 170405^2 .

It is a cyclic number.

It is not a de Polignac number, because 224414240221 - 2¹⁵ = 224414207453 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224414240221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (224414240227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112207120110 + 112207120111.

It is an arithmetic number, because the mean of its divisors is an integer number (112207120111).

Almost surely, 2^224414240221 is an apocalyptic number.

It is an amenable number.

224414240221 is a deficient number, since it is larger than the sum of its proper divisors (1).

224414240221 is an equidigital number, since it uses as much as digits as its factorization.

224414240221 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8192, while the sum is 28.

Adding to 224414240221 its reverse (122042414422), we get a palindrome (346456654643).

The spelling of 224414240221 in words is "two hundred twenty-four billion, four hundred fourteen million, two hundred forty thousand, two hundred twenty-one".