20115224071 has 2 divisors, whose sum is σ = 20115224072. Its totient is φ = 20115224070.

The previous prime is 20115224039. The next prime is 20115224081. The reversal of 20115224071 is 17042251102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20115224071 - 2⁵ = 20115224039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20115224021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10057612035 + 10057612036.

It is an arithmetic number, because the mean of its divisors is an integer number (10057612036).

Almost surely, 2^20115224071 is an apocalyptic number.

20115224071 is a deficient number, since it is larger than the sum of its proper divisors (1).

20115224071 is an equidigital number, since it uses as much as digits as its factorization.

20115224071 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1120, while the sum is 25.

Adding to 20115224071 its reverse (17042251102), we get a palindrome (37157475173).

The spelling of 20115224071 in words is "twenty billion, one hundred fifteen million, two hundred twenty-four thousand, seventy-one".