1111120222111 has 4 divisors (see below), whose sum is σ = 1111167008224. Its totient is φ = 1111073436000.

The previous prime is 1111120222031. The next prime is 1111120222123. The reversal of 1111120222111 is 1112220211111.

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 1111120222111 - 2⁷ = 1111120221983 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 (1111120223111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23357415 + ... + 23404936.

It is an arithmetic number, because the mean of its divisors is an integer number (277791752056).

Almost surely, 2^{1111120222111} is an apocalyptic number.

1111120222111 is a deficient number, since it is larger than the sum of its proper divisors (46786113).

1111120222111 is an equidigital number, since it uses as much as digits as its factorization.

1111120222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46786112.

The product of its (nonzero) digits is 16, while the sum is 16.

Adding to 1111120222111 its reverse (1112220211111), we get a palindrome (2223340433222).

The spelling of 1111120222111 in words is "one trillion, one hundred eleven billion, one hundred twenty million, two hundred twenty-two thousand, one hundred eleven".