242124421 has 16 divisors (see below), whose sum is σ = 319628160. Its totient is φ = 177569280.

The previous prime is 242124383. The next prime is 242124457. The reversal of 242124421 is 124421242.

242124421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 242124421 - 2¹⁵ = 242091653 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 242124392 and 242124401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (242124481) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 91176 + ... + 93793.

It is an arithmetic number, because the mean of its divisors is an integer number (19976760).

Almost surely, 2^242124421 is an apocalyptic number.

It is an amenable number.

242124421 is a deficient number, since it is larger than the sum of its proper divisors (77503739).

242124421 is a wasteful number, since it uses less digits than its factorization.

242124421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185004.

The product of its digits is 1024, while the sum is 22.

The square root of 242124421 is about 15560.3477146239. The cubic root of 242124421 is about 623.2747479104.

Adding to 242124421 its reverse (124421242), we get a palindrome (366545663).

The spelling of 242124421 in words is "two hundred forty-two million, one hundred twenty-four thousand, four hundred twenty-one".