1111102211111 has 4 divisors (see below), whose sum is σ = 1112268111552. Its totient is φ = 1109936310672.

The previous prime is 1111102211083. The next prime is 1111102211113. The reversal of 1111102211111 is 1111122011111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111102211111 - 2¹⁸ = 1111101948967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111102211113) 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 in 3 ways as a sum of consecutive naturals, for example, 582948791 + ... + 582950696.

It is an arithmetic number, because the mean of its divisors is an integer number (278067027888).

Almost surely, 2^{1111102211111} is an apocalyptic number.

1111102211111 is a deficient number, since it is larger than the sum of its proper divisors (1165900441).

1111102211111 is an equidigital number, since it uses as much as digits as its factorization.

1111102211111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1165900440.

The product of its (nonzero) digits is 4, while the sum is 14.

Adding to 1111102211111 its reverse (1111122011111), we get a palindrome (2222224222222).

The spelling of 1111102211111 in words is "one trillion, one hundred eleven billion, one hundred two million, two hundred eleven thousand, one hundred eleven".