20024224091 has 2 divisors, whose sum is σ = 20024224092. Its totient is φ = 20024224090.

The previous prime is 20024224079. The next prime is 20024224093. The reversal of 20024224091 is 19042242002.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20024224091 is a prime.

Together with 20024224093, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20024224091.

It is not a weakly prime, because it can be changed into another prime (20024224093) 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 as a sum of consecutive naturals, namely, 10012112045 + 10012112046.

It is an arithmetic number, because the mean of its divisors is an integer number (10012112046).

Almost surely, 2^20024224091 is an apocalyptic number.

20024224091 is a deficient number, since it is larger than the sum of its proper divisors (1).

20024224091 is an equidigital number, since it uses as much as digits as its factorization.

20024224091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20024224091 its reverse (19042242002), we get a palindrome (39066466093).

The spelling of 20024224091 in words is "twenty billion, twenty-four million, two hundred twenty-four thousand, ninety-one".