2044220445421 has 64 divisors (see below), whose sum is σ = 2697453158400. Its totient is φ = 1500820876800.

The previous prime is 2044220445359. The next prime is 2044220445467. The reversal of 2044220445421 is 1245440224402.

It is not a de Polignac number, because 2044220445421 - 2²¹ = 2044218348269 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044220446421) 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 63 ways as a sum of consecutive naturals, for example, 420532531 + ... + 420537391.

It is an arithmetic number, because the mean of its divisors is an integer number (42147705600).

Almost surely, 2^{2044220445421} is an apocalyptic number.

It is an amenable number.

2044220445421 is a deficient number, since it is larger than the sum of its proper divisors (653232712979).

2044220445421 is a wasteful number, since it uses less digits than its factorization.

2044220445421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6410.

The product of its (nonzero) digits is 81920, while the sum is 34.

Adding to 2044220445421 its reverse (1245440224402), we get a palindrome (3289660669823).

The spelling of 2044220445421 in words is "two trillion, forty-four billion, two hundred twenty million, four hundred forty-five thousand, four hundred twenty-one".