211122112012 has 24 divisors (see below), whose sum is σ = 436804371360. Its totient is φ = 87360873600.

The previous prime is 211122112007. The next prime is 211122112013. The reversal of 211122112012 is 210211221112.

211122112012 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (211122112013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 130000489 + ... + 130002112.

It is an arithmetic number, because the mean of its divisors is an integer number (18200182140).

Almost surely, 2^211122112012 is an apocalyptic number.

It is an amenable number.

211122112012 is an abundant number, since it is smaller than the sum of its proper divisors (225682259348).

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

211122112012 is a wasteful number, since it uses less digits than its factorization.

211122112012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260002641 (or 260002639 counting only the distinct ones).

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

Adding to 211122112012 its reverse (210211221112), we get a palindrome (421333333124).

The spelling of 211122112012 in words is "two hundred eleven billion, one hundred twenty-two million, one hundred twelve thousand, twelve".