224003121 has 8 divisors (see below), whose sum is σ = 302027040. Its totient is φ = 147657312.

The previous prime is 224003119. The next prime is 224003123. The reversal of 224003121 is 121300422.

It is an interprime number because it is at equal distance from previous prime (224003119) and next prime (224003123).

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 224003121 - 2¹ = 224003119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 224003121.

It is not an unprimeable number, because it can be changed into a prime (224003123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 419215 + ... + 419748.

It is an arithmetic number, because the mean of its divisors is an integer number (37753380).

Almost surely, 2^224003121 is an apocalyptic number.

It is an amenable number.

224003121 is a deficient number, since it is larger than the sum of its proper divisors (78023919).

224003121 is an equidigital number, since it uses as much as digits as its factorization.

224003121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 839055.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 224003121 is about 14966.7338120246. The cubic root of 224003121 is about 607.3206149555.

Adding to 224003121 its reverse (121300422), we get a palindrome (345303543).

The spelling of 224003121 in words is "two hundred twenty-four million, three thousand, one hundred twenty-one".