442020012102 has 24 divisors (see below), whose sum is σ = 964700615736. Its totient is φ = 146264528736.

The previous prime is 442020012089. The next prime is 442020012151. The reversal of 442020012102 is 201210020244.

442020012102 is a `hidden beast` number, since 442 + 0 + 200 + 1 + 21 + 0 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 89620408 + ... + 89625339.

It is an arithmetic number, because the mean of its divisors is an integer number (40195858989).

Almost surely, 2^442020012102 is an apocalyptic number.

442020012102 is an abundant number, since it is smaller than the sum of its proper divisors (522680603634).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

442020012102 is a wasteful number, since it uses less digits than its factorization.

442020012102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179245892 (or 179245889 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 18.

Adding to 442020012102 its reverse (201210020244), we get a palindrome (643230032346).

The spelling of 442020012102 in words is "four hundred forty-two billion, twenty million, twelve thousand, one hundred two".