442231412121 has 24 divisors (see below), whose sum is σ = 640627459680. Its totient is φ = 293968071936.

The previous prime is 442231412089. The next prime is 442231412137. The reversal of 442231412121 is 121214132244.

442231412121 is a `hidden beast` number, since 4 + 4 + 2 + 231 + 412 + 12 + 1 = 666.

It is not a de Polignac number, because 442231412121 - 2⁵ = 442231412089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442231412521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15495561 + ... + 15524073.

It is an arithmetic number, because the mean of its divisors is an integer number (26692810820).

Almost surely, 2^442231412121 is an apocalyptic number.

It is an amenable number.

442231412121 is a deficient number, since it is larger than the sum of its proper divisors (198396047559).

442231412121 is a wasteful number, since it uses less digits than its factorization.

442231412121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33445 (or 33442 counting only the distinct ones).

The product of its digits is 3072, while the sum is 27.

Adding to 442231412121 its reverse (121214132244), we get a palindrome (563445544365).

The spelling of 442231412121 in words is "four hundred forty-two billion, two hundred thirty-one million, four hundred twelve thousand, one hundred twenty-one".