11111001227 has 2 divisors, whose sum is σ = 11111001228. Its totient is φ = 11111001226.

The previous prime is 11111001191. The next prime is 11111001233. The reversal of 11111001227 is 72210011111.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11111001227 - 2⁶ = 11111001163 is a prime.

It is not a weakly prime, because it can be changed into another prime (11111001257) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555500613 + 5555500614.

It is an arithmetic number, because the mean of its divisors is an integer number (5555500614).

Almost surely, 2^11111001227 is an apocalyptic number.

11111001227 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111001227 is an equidigital number, since it uses as much as digits as its factorization.

11111001227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 11111001227 its reverse (72210011111), we get a palindrome (83321012338).

The spelling of 11111001227 in words is "eleven billion, one hundred eleven million, one thousand, two hundred twenty-seven".