42412121121 has 8 divisors (see below), whose sum is σ = 56694867840. Its totient is φ = 28202060912.

The previous prime is 42412121117. The next prime is 42412121123. The reversal of 42412121121 is 12112121424.

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 42412121121 - 2² = 42412121117 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42412121123) 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, 18170265 + ... + 18172598.

It is an arithmetic number, because the mean of its divisors is an integer number (7086858480).

Almost surely, 2^42412121121 is an apocalyptic number.

It is an amenable number.

42412121121 is a deficient number, since it is larger than the sum of its proper divisors (14282746719).

42412121121 is a wasteful number, since it uses less digits than its factorization.

42412121121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36343255.

The product of its digits is 256, while the sum is 21.

Adding to 42412121121 its reverse (12112121424), we get a palindrome (54524242545).

The spelling of 42412121121 in words is "forty-two billion, four hundred twelve million, one hundred twenty-one thousand, one hundred twenty-one".