20112017227 has 2 divisors, whose sum is σ = 20112017228. Its totient is φ = 20112017226.

The previous prime is 20112017207. The next prime is 20112017239. The reversal of 20112017227 is 72271021102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20112017227 - 2³¹ = 17964533579 is a prime.

It is not a weakly prime, because it can be changed into another prime (20112017207) 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, 10056008613 + 10056008614.

It is an arithmetic number, because the mean of its divisors is an integer number (10056008614).

Almost surely, 2^20112017227 is an apocalyptic number.

20112017227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20112017227 is an equidigital number, since it uses as much as digits as its factorization.

20112017227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 784, while the sum is 25.

Adding to 20112017227 its reverse (72271021102), we get a palindrome (92383038329).

The spelling of 20112017227 in words is "twenty billion, one hundred twelve million, seventeen thousand, two hundred twenty-seven".