111122212012 has 24 divisors (see below), whose sum is σ = 222629628704. Its totient is φ = 47541261312.

The previous prime is 111122212007. The next prime is 111122212037. The reversal of 111122212012 is 210212221111.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3422883 + ... + 3455194.

Almost surely, 2^111122212012 is an apocalyptic number.

It is an amenable number.

111122212012 is an abundant number, since it is smaller than the sum of its proper divisors (111507416692).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

111122212012 is a wasteful number, since it uses less digits than its factorization.

111122212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6878665 (or 6878663 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 111122212012 its reverse (210212221111), we get a palindrome (321334433123).

Subtracting 111122212012 from its reverse (210212221111), we obtain a palindrome (99090009099).

The spelling of 111122212012 in words is "one hundred eleven billion, one hundred twenty-two million, two hundred twelve thousand, twelve".