11101221227 has 2 divisors, whose sum is σ = 11101221228. Its totient is φ = 11101221226.

The previous prime is 11101221191. The next prime is 11101221277. The reversal of 11101221227 is 72212210111.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11101221227 - 2²² = 11097026923 is a prime.

It is a super-2 number, since 2×11101221227² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11101221199 and 11101221208.

It is not a weakly prime, because it can be changed into another prime (11101221277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550610613 + 5550610614.

It is an arithmetic number, because the mean of its divisors is an integer number (5550610614).

Almost surely, 2^11101221227 is an apocalyptic number.

11101221227 is a deficient number, since it is larger than the sum of its proper divisors (1).

11101221227 is an equidigital number, since it uses as much as digits as its factorization.

11101221227 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 20.

Adding to 11101221227 its reverse (72212210111), we get a palindrome (83313431338).

The spelling of 11101221227 in words is "eleven billion, one hundred one million, two hundred twenty-one thousand, two hundred twenty-seven".