1112220111 has 16 divisors (see below), whose sum is σ = 1524727808. Its totient is φ = 720640800.

The previous prime is 1112220107. The next prime is 1112220143. The reversal of 1112220111 is 1110222111.

It is not a de Polignac number, because 1112220111 - 2² = 1112220107 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 (1112220101) 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, 104946 + ... + 115056.

It is an arithmetic number, because the mean of its divisors is an integer number (95295488).

Almost surely, 2^1112220111 is an apocalyptic number.

1112220111 is a deficient number, since it is larger than the sum of its proper divisors (412507697).

1112220111 is a wasteful number, since it uses less digits than its factorization.

1112220111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11142.

The product of its (nonzero) digits is 8, while the sum is 12.

The square root of 1112220111 is about 33349.9641828893. The cubic root of 1112220111 is about 1036.0886461194.

Adding to 1112220111 its reverse (1110222111), we get a palindrome (2222442222).

It can be divided in two parts, 111 and 2220111, that added together give a palindrome (2220222).

The spelling of 1112220111 in words is "one billion, one hundred twelve million, two hundred twenty thousand, one hundred eleven".