42241121 has 8 divisors (see below), whose sum is σ = 45612840. Its totient is φ = 38886912.

The previous prime is 42241103. The next prime is 42241151. The reversal of 42241121 is 12114224.

It can be written as a sum of positive squares in 4 ways, for example, as 819025 + 41422096 = 905^2 + 6436^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42241121 - 2⁶ = 42241057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 42241121.

It is not an unprimeable number, because it can be changed into a prime (42241151) 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, 881 + ... + 9233.

It is an arithmetic number, because the mean of its divisors is an integer number (5701605).

Almost surely, 2^42241121 is an apocalyptic number.

It is an amenable number.

42241121 is a deficient number, since it is larger than the sum of its proper divisors (3371719).

42241121 is a wasteful number, since it uses less digits than its factorization.

42241121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8755.

The product of its digits is 128, while the sum is 17.

The square root of 42241121 is about 6499.3169641125. The cubic root of 42241121 is about 348.2665884545.

Adding to 42241121 its reverse (12114224), we get a palindrome (54355345).

The spelling of 42241121 in words is "forty-two million, two hundred forty-one thousand, one hundred twenty-one".