242231121 has 32 divisors (see below), whose sum is σ = 392355840. Its totient is φ = 146480400.

The previous prime is 242231047. The next prime is 242231131. The reversal of 242231121 is 121132242.

It is a happy number.

It is not a de Polignac number, because 242231121 - 2¹⁰ = 242230097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242231094 and 242231103.

It is not an unprimeable number, because it can be changed into a prime (242231131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 243936 + ... + 244926.

It is an arithmetic number, because the mean of its divisors is an integer number (12261120).

Almost surely, 2^242231121 is an apocalyptic number.

It is an amenable number.

242231121 is a deficient number, since it is larger than the sum of its proper divisors (150124719).

242231121 is a wasteful number, since it uses less digits than its factorization.

242231121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1834 (or 1828 counting only the distinct ones).

The product of its digits is 192, while the sum is 18.

The square root of 242231121 is about 15563.7759235990. The cubic root of 242231121 is about 623.3662898936.

Adding to 242231121 its reverse (121132242), we get a palindrome (363363363).

The spelling of 242231121 in words is "two hundred forty-two million, two hundred thirty-one thousand, one hundred twenty-one".