1112122222111 has 16 divisors (see below), whose sum is σ = 1127903736960. Its totient is φ = 1096399545120.

The previous prime is 1112122222087. The next prime is 1112122222163. The reversal of 1112122222111 is 1112222212111.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1112122222111 - 2²⁷ = 1111988004383 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 (1112122222171) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 108568756 + ... + 108578998.

It is an arithmetic number, because the mean of its divisors is an integer number (70493983560).

Almost surely, 2^{1112122222111} is an apocalyptic number.

1112122222111 is a deficient number, since it is larger than the sum of its proper divisors (15781514849).

1112122222111 is a wasteful number, since it uses less digits than its factorization.

1112122222111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12966.

The product of its digits is 64, while the sum is 19.

Adding to 1112122222111 its reverse (1112222212111), we get a palindrome (2224344434222).

The spelling of 1112122222111 in words is "one trillion, one hundred twelve billion, one hundred twenty-two million, two hundred twenty-two thousand, one hundred eleven".