2021044021042 has 32 divisors (see below), whose sum is σ = 3075740941104. Its totient is φ = 995892480000.

The previous prime is 2021044021033. The next prime is 2021044021067. The reversal of 2021044021042 is 2401204401202.

It can be written as a sum of positive squares in 8 ways, for example, as 1185701032201 + 835342988841 = 1088899^2 + 913971^2 .

It is a super-2 number, since 2×2021044021042² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 204120292 + ... + 204130192.

Almost surely, 2^{2021044021042} is an apocalyptic number.

2021044021042 is a deficient number, since it is larger than the sum of its proper divisors (1054696920062).

2021044021042 is a wasteful number, since it uses less digits than its factorization.

2021044021042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14574.

The product of its (nonzero) digits is 1024, while the sum is 22.

Adding to 2021044021042 its reverse (2401204401202), we get a palindrome (4422248422244).

The spelling of 2021044021042 in words is "two trillion, twenty-one billion, forty-four million, twenty-one thousand, forty-two".