20224242191 has 2 divisors, whose sum is σ = 20224242192. Its totient is φ = 20224242190.

The previous prime is 20224242161. The next prime is 20224242193. The reversal of 20224242191 is 19124242202.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20224242191 - 2¹⁸ = 20223980047 is a prime.

It is a Sophie Germain prime.

Together with 20224242193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20224242193) 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, 10112121095 + 10112121096.

It is an arithmetic number, because the mean of its divisors is an integer number (10112121096).

Almost surely, 2^20224242191 is an apocalyptic number.

20224242191 is a deficient number, since it is larger than the sum of its proper divisors (1).

20224242191 is an equidigital number, since it uses as much as digits as its factorization.

20224242191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4608, while the sum is 29.

Adding to 20224242191 its reverse (19124242202), we get a palindrome (39348484393).

The spelling of 20224242191 in words is "twenty billion, two hundred twenty-four million, two hundred forty-two thousand, one hundred ninety-one".