2044204221 has 4 divisors (see below), whose sum is σ = 2725605632. Its totient is φ = 1362802812.

The previous prime is 2044204193. The next prime is 2044204241. The reversal of 2044204221 is 1224024402.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2044204221 - 2¹⁰ = 2044203197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2044204241) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 340700701 + ... + 340700706.

It is an arithmetic number, because the mean of its divisors is an integer number (681401408).

Almost surely, 2^2044204221 is an apocalyptic number.

It is an amenable number.

2044204221 is a deficient number, since it is larger than the sum of its proper divisors (681401411).

2044204221 is an equidigital number, since it uses as much as digits as its factorization.

2044204221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 681401410.

The product of its (nonzero) digits is 1024, while the sum is 21.

The square root of 2044204221 is about 45212.8767167054. The cubic root of 2044204221 is about 1269.1357960098.

Adding to 2044204221 its reverse (1224024402), we get a palindrome (3268228623).

The spelling of 2044204221 in words is "two billion, forty-four million, two hundred four thousand, two hundred twenty-one".