242224121 has 4 divisors (see below), whose sum is σ = 242899200. Its totient is φ = 241549044.

The previous prime is 242224093. The next prime is 242224123. The reversal of 242224121 is 121422242.

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, and also an emirpimes, since its reverse is a distinct semiprime: 121422242 = 2 ⋅60711121.

It is a cyclic number.

It is not a de Polignac number, because 242224121 - 2⁶ = 242224057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242224093 and 242224102.

It is not an unprimeable number, because it can be changed into a prime (242224123) 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, 337001 + ... + 337718.

It is an arithmetic number, because the mean of its divisors is an integer number (60724800).

Almost surely, 2^242224121 is an apocalyptic number.

It is an amenable number.

242224121 is a deficient number, since it is larger than the sum of its proper divisors (675079).

242224121 is an equidigital number, since it uses as much as digits as its factorization.

242224121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 675078.

The product of its digits is 512, while the sum is 20.

The square root of 242224121 is about 15563.5510408133. The cubic root of 242224121 is about 623.3602851517.

Adding to 242224121 its reverse (121422242), we get a palindrome (363646363).

The spelling of 242224121 in words is "two hundred forty-two million, two hundred twenty-four thousand, one hundred twenty-one".