2004422191 has 2 divisors, whose sum is σ = 2004422192. Its totient is φ = 2004422190.

The previous prime is 2004422177. The next prime is 2004422257. The reversal of 2004422191 is 1912244002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2004422191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2004422491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1002211095 + 1002211096.

It is an arithmetic number, because the mean of its divisors is an integer number (1002211096).

Almost surely, 2^2004422191 is an apocalyptic number.

2004422191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2004422191 is an equidigital number, since it uses as much as digits as its factorization.

2004422191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

The square root of 2004422191 is about 44770.7738485722. The cubic root of 2004422191 is about 1260.8489682464.

Adding to 2004422191 its reverse (1912244002), we get a palindrome (3916666193).

The spelling of 2004422191 in words is "two billion, four million, four hundred twenty-two thousand, one hundred ninety-one".