1112121112 has 16 divisors (see below), whose sum is σ = 2085922800. Its totient is φ = 555875040.

The previous prime is 1112121107. The next prime is 1112121161. The reversal of 1112121112 is 2111212111.

It is a happy number.

It is a super-2 number, since 2×1112121112² = 2473626735512233088, which contains 22 as substring.

It is a nude number because it is divisible by every one of its digits and also a Zuckerman number because it is divisible by the product of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 1112121092 and 1112121101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4189 + ... + 47347.

It is an arithmetic number, because the mean of its divisors is an integer number (130370175).

Almost surely, 2^1112121112 is an apocalyptic number.

It is an amenable number.

1112121112 is a deficient number, since it is larger than the sum of its proper divisors (973801688).

1112121112 is a wasteful number, since it uses less digits than its factorization.

1112121112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46386 (or 46382 counting only the distinct ones).

The product of its digits is 8, while the sum is 13.

The square root of 1112121112 is about 33348.4799053870. The cubic root of 1112121112 is about 1036.0579043678.

Adding to 1112121112 its reverse (2111212111), we get a palindrome (3223333223).

Subtracting 1112121112 from its reverse (2111212111), we obtain a palindrome (999090999).

It can be divided in two parts, 111212111 and 2, that multiplied together give a palindrome (222424222).

The spelling of 1112121112 in words is "one billion, one hundred twelve million, one hundred twenty-one thousand, one hundred twelve".