242332221 has 8 divisors (see below), whose sum is σ = 323963680. Its totient is φ = 161127792.

The previous prime is 242332193. The next prime is 242332241. The reversal of 242332221 is 122233242.

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

It is not a de Polignac number, because 242332221 - 2⁶ = 242332157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242332241) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 105430 + ... + 107703.

It is an arithmetic number, because the mean of its divisors is an integer number (40495460).

Almost surely, 2^242332221 is an apocalyptic number.

It is an amenable number.

242332221 is a deficient number, since it is larger than the sum of its proper divisors (81631459).

242332221 is a wasteful number, since it uses less digits than its factorization.

242332221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213515.

The product of its digits is 1152, while the sum is 21.

The square root of 242332221 is about 15567.0235112561. The cubic root of 242332221 is about 623.4530026245.

Adding to 242332221 its reverse (122233242), we get a palindrome (364565463).

The spelling of 242332221 in words is "two hundred forty-two million, three hundred thirty-two thousand, two hundred twenty-one".