1111112112211 has 2 divisors, whose sum is σ = 1111112112212. Its totient is φ = 1111112112210.

The previous prime is 1111112112193. The next prime is 1111112112241. The reversal of 1111112112211 is 1122112111111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111112112211 - 2⁷ = 1111112112083 is a prime.

It is not a weakly prime, because it can be changed into another prime (1111112112241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555556056105 + 555556056106.

It is an arithmetic number, because the mean of its divisors is an integer number (555556056106).

Almost surely, 2^{1111112112211} is an apocalyptic number.

1111112112211 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111112112211 is an equidigital number, since it uses as much as digits as its factorization.

1111112112211 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8, while the sum is 16.

Adding to 1111112112211 its reverse (1122112111111), we get a palindrome (2233224223322).

The spelling of 1111112112211 in words is "one trillion, one hundred eleven billion, one hundred twelve million, one hundred twelve thousand, two hundred eleven".