224332121 has 6 divisors (see below), whose sum is σ = 242916030. Its totient is φ = 207075648.

The previous prime is 224332117. The next prime is 224332169. The reversal of 224332121 is 121233422.

It can be written as a sum of positive squares in 3 ways, for example, as 17547721 + 206784400 = 4189^2 + 14380^2 .

It is not a de Polignac number, because 224332121 - 2² = 224332117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 224332093 and 224332102.

It is not an unprimeable number, because it can be changed into a prime (224332321) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 663536 + ... + 663873.

It is an arithmetic number, because the mean of its divisors is an integer number (40486005).

Almost surely, 2^224332121 is an apocalyptic number.

It is an amenable number.

224332121 is a deficient number, since it is larger than the sum of its proper divisors (18583909).

224332121 is a wasteful number, since it uses less digits than its factorization.

224332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327435 (or 1327422 counting only the distinct ones).

The product of its digits is 576, while the sum is 20.

The square root of 224332121 is about 14977.7208212732. The cubic root of 224332121 is about 607.6177994168.

Adding to 224332121 its reverse (121233422), we get a palindrome (345565543).

It can be divided in two parts, 224332 and 121, that multiplied together give a palindrome (27144172).

The spelling of 224332121 in words is "two hundred twenty-four million, three hundred thirty-two thousand, one hundred twenty-one".