2042221043444 has 36 divisors (see below), whose sum is σ = 3772253872800. Its totient is φ = 967273541136.

The previous prime is 2042221043419. The next prime is 2042221043449. The reversal of 2042221043444 is 4443401222402.

It is a super-2 number, since 2×2042221043444² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 2042221043444.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2042221043449) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16050227 + ... + 16176965.

It is an arithmetic number, because the mean of its divisors is an integer number (104784829800).

Almost surely, 2^{2042221043444} is an apocalyptic number.

It is an amenable number.

2042221043444 is a deficient number, since it is larger than the sum of its proper divisors (1730032829356).

2042221043444 is a wasteful number, since it uses less digits than its factorization.

2042221043444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137940 (or 137919 counting only the distinct ones).

The product of its (nonzero) digits is 49152, while the sum is 32.

Adding to 2042221043444 its reverse (4443401222402), we get a palindrome (6485622265846).

The spelling of 2042221043444 in words is "two trillion, forty-two billion, two hundred twenty-one million, forty-three thousand, four hundred forty-four".