212105051112 has 48 divisors (see below), whose sum is σ = 554319944640. Its totient is φ = 67627693408.

The previous prime is 212105051071. The next prime is 212105051129. The reversal of 212105051112 is 211150501212.

212105051112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 8340528 + ... + 8365919.

It is an arithmetic number, because the mean of its divisors is an integer number (11548332180).

Almost surely, 2^212105051112 is an apocalyptic number.

It is an amenable number.

212105051112 is an abundant number, since it is smaller than the sum of its proper divisors (342214893528).

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

212105051112 is a wasteful number, since it uses less digits than its factorization.

212105051112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16706502 (or 16706475 counting only the distinct ones).

The product of its (nonzero) digits is 200, while the sum is 21.

Adding to 212105051112 its reverse (211150501212), we get a palindrome (423255552324).

The spelling of 212105051112 in words is "two hundred twelve billion, one hundred five million, fifty-one thousand, one hundred twelve".