224342121 has 4 divisors (see below), whose sum is σ = 299122832. Its totient is φ = 149561412.

The previous prime is 224342117. The next prime is 224342123. The reversal of 224342121 is 121243422.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 224342121 - 2² = 224342117 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (224342123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37390351 + ... + 37390356.

It is an arithmetic number, because the mean of its divisors is an integer number (74780708).

Almost surely, 2^224342121 is an apocalyptic number.

It is an amenable number.

224342121 is a deficient number, since it is larger than the sum of its proper divisors (74780711).

224342121 is an equidigital number, since it uses as much as digits as its factorization.

224342121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74780710.

The product of its digits is 768, while the sum is 21.

The square root of 224342121 is about 14978.0546467156. The cubic root of 224342121 is about 607.6268278277.

Adding to 224342121 its reverse (121243422), we get a palindrome (345585543).

The spelling of 224342121 in words is "two hundred twenty-four million, three hundred forty-two thousand, one hundred twenty-one".