11112112012 has 6 divisors (see below), whose sum is σ = 19446196028. Its totient is φ = 5556056004.

The previous prime is 11112112009. The next prime is 11112112069. The reversal of 11112112012 is 21021121111.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 11112111983 and 11112112001.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389013998 + ... + 1389014005.

Almost surely, 2^11112112012 is an apocalyptic number.

It is an amenable number.

11112112012 is a deficient number, since it is larger than the sum of its proper divisors (8334084016).

11112112012 is a wasteful number, since it uses less digits than its factorization.

11112112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2778028007 (or 2778028005 counting only the distinct ones).

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

Adding to 11112112012 its reverse (21021121111), we get a palindrome (32133233123).

Subtracting 11112112012 from its reverse (21021121111), we obtain a palindrome (9909009099).

The spelling of 11112112012 in words is "eleven billion, one hundred twelve million, one hundred twelve thousand, twelve".