211112112012 has 12 divisors (see below), whose sum is σ = 492594928056. Its totient is φ = 70370704000.

The previous prime is 211112112011. The next prime is 211112112091. The reversal of 211112112012 is 210211211112.

It is a happy number.

211112112012 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 211112111982 and 211112112000.

It is not an unprimeable number, because it can be changed into a prime (211112112011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8796337989 + ... + 8796338012.

It is an arithmetic number, because the mean of its divisors is an integer number (41049577338).

Almost surely, 2^211112112012 is an apocalyptic number.

It is an amenable number.

211112112012 is an abundant number, since it is smaller than the sum of its proper divisors (281482816044).

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

211112112012 is a wasteful number, since it uses less digits than its factorization.

211112112012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17592676008 (or 17592676006 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 211112112012 its reverse (210211211112), we get a palindrome (421323323124).

The spelling of 211112112012 in words is "two hundred eleven billion, one hundred twelve million, one hundred twelve thousand, twelve".