224113121 has 2 divisors, whose sum is σ = 224113122. Its totient is φ = 224113120.

The previous prime is 224113111. The next prime is 224113129. The reversal of 224113121 is 121311422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 137827600 + 86285521 = 11740^2 + 9289^2 .

It is a cyclic number.

It is not a de Polignac number, because 224113121 - 2²⁶ = 157004257 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 224113121.

It is not a weakly prime, because it can be changed into another prime (224113129) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 112056560 + 112056561.

It is an arithmetic number, because the mean of its divisors is an integer number (112056561).

Almost surely, 2^224113121 is an apocalyptic number.

It is an amenable number.

224113121 is a deficient number, since it is larger than the sum of its proper divisors (1).

224113121 is an equidigital number, since it uses as much as digits as its factorization.

224113121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96, while the sum is 17.

The square root of 224113121 is about 14970.4081774680. The cubic root of 224113121 is about 607.4200099031.

Adding to 224113121 its reverse (121311422), we get a palindrome (345424543).

The spelling of 224113121 in words is "two hundred twenty-four million, one hundred thirteen thousand, one hundred twenty-one".