20011200227 has 2 divisors, whose sum is σ = 20011200228. Its totient is φ = 20011200226.

The previous prime is 20011200217. The next prime is 20011200229. The reversal of 20011200227 is 72200211002.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20011200227 - 2¹⁰ = 20011199203 is a prime.

Together with 20011200229, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (20011200229) 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, 10005600113 + 10005600114.

It is an arithmetic number, because the mean of its divisors is an integer number (10005600114).

Almost surely, 2^20011200227 is an apocalyptic number.

20011200227 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011200227 is an equidigital number, since it uses as much as digits as its factorization.

20011200227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 17.

Adding to 20011200227 its reverse (72200211002), we get a palindrome (92211411229).

The spelling of 20011200227 in words is "twenty billion, eleven million, two hundred thousand, two hundred twenty-seven".