1121101222111 has 16 divisors (see below), whose sum is σ = 1227986928000. Its totient is φ = 1017170360928.

The previous prime is 1121101222093. The next prime is 1121101222159. The reversal of 1121101222111 is 1112221011211.

It is a cyclic number.

It is not a de Polignac number, because 1121101222111 - 2⁹ = 1121101221599 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 (1121101222181) 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 in 15 ways as a sum of consecutive naturals, for example, 5185600 + ... + 5397466.

It is an arithmetic number, because the mean of its divisors is an integer number (76749183000).

Almost surely, 2^{1121101222111} is an apocalyptic number.

1121101222111 is a deficient number, since it is larger than the sum of its proper divisors (106885705889).

1121101222111 is a wasteful number, since it uses less digits than its factorization.

1121101222111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 218838.

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

Adding to 1121101222111 its reverse (1112221011211), we get a palindrome (2233322233322).

The spelling of 1121101222111 in words is "one trillion, one hundred twenty-one billion, one hundred one million, two hundred twenty-two thousand, one hundred eleven".