1111221111227 has 2 divisors, whose sum is σ = 1111221111228. Its totient is φ = 1111221111226.

The previous prime is 1111221111199. The next prime is 1111221111239. The reversal of 1111221111227 is 7221111221111.

It is a strong prime.

It is an emirp because it is prime and its reverse (7221111221111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1111221111227 - 2⁶ = 1111221111163 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111221111727) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555610555613 + 555610555614.

It is an arithmetic number, because the mean of its divisors is an integer number (555610555614).

Almost surely, 2^{1111221111227} is an apocalyptic number.

1111221111227 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111221111227 is an equidigital number, since it uses as much as digits as its factorization.

1111221111227 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112, while the sum is 23.

Adding to 1111221111227 its reverse (7221111221111), we get a palindrome (8332332332338).

The spelling of 1111221111227 in words is "one trillion, one hundred eleven billion, two hundred twenty-one million, one hundred eleven thousand, two hundred twenty-seven".