212100131112 has 64 divisors (see below), whose sum is σ = 549671209920. Its totient is φ = 68146311168.

The previous prime is 212100131107. The next prime is 212100131141. The reversal of 212100131112 is 211131001212.

212100131112 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212100131091 and 212100131100.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1021113 + ... + 1211144.

It is an arithmetic number, because the mean of its divisors is an integer number (8588612655).

Almost surely, 2^212100131112 is an apocalyptic number.

It is an amenable number.

212100131112 is an abundant number, since it is smaller than the sum of its proper divisors (337571078808).

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

212100131112 is a wasteful number, since it uses less digits than its factorization.

212100131112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2232410 (or 2232406 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 212100131112 its reverse (211131001212), we get a palindrome (423231132324).

The spelling of 212100131112 in words is "two hundred twelve billion, one hundred million, one hundred thirty-one thousand, one hundred twelve".