4224130121 has 2 divisors, whose sum is σ = 4224130122. Its totient is φ = 4224130120.

The previous prime is 4224130117. The next prime is 4224130129. The reversal of 4224130121 is 1210314224.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3547870096 + 676260025 = 59564^2 + 26005^2 .

It is a cyclic number.

It is not a de Polignac number, because 4224130121 - 2² = 4224130117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 4224130093 and 4224130102.

It is not a weakly prime, because it can be changed into another prime (4224130129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2112065060 + 2112065061.

It is an arithmetic number, because the mean of its divisors is an integer number (2112065061).

Almost surely, 2^4224130121 is an apocalyptic number.

It is an amenable number.

4224130121 is a deficient number, since it is larger than the sum of its proper divisors (1).

4224130121 is an equidigital number, since it uses as much as digits as its factorization.

4224130121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 4224130121 is about 64993.3082786220. The cubic root of 4224130121 is about 1616.5126068850.

Adding to 4224130121 its reverse (1210314224), we get a palindrome (5434444345).

The spelling of 4224130121 in words is "four billion, two hundred twenty-four million, one hundred thirty thousand, one hundred twenty-one".