442002221001 has 48 divisors (see below), whose sum is σ = 719265438528. Its totient is φ = 259199740800.

The previous prime is 442002220993. The next prime is 442002221069. The reversal of 442002221001 is 100122200244.

442002221001 is a `hidden beast` number, since 442 + 0 + 0 + 2 + 221 + 0 + 0 + 1 = 666.

It is not a de Polignac number, because 442002221001 - 2³ = 442002220993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (442002222001) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 329670 + ... + 996336.

It is an arithmetic number, because the mean of its divisors is an integer number (14984696636).

Almost surely, 2^442002221001 is an apocalyptic number.

It is an amenable number.

442002221001 is a deficient number, since it is larger than the sum of its proper divisors (277263217527).

442002221001 is a wasteful number, since it uses less digits than its factorization.

442002221001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 666902 (or 666899 counting only the distinct ones).

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

Adding to 442002221001 its reverse (100122200244), we get a palindrome (542124421245).

The spelling of 442002221001 in words is "four hundred forty-two billion, two million, two hundred twenty-one thousand, one".