212100212221112 has 64 divisors (see below), whose sum is σ = 408907652630400. Its totient is φ = 103077505152000.

The previous prime is 212100212221109. The next prime is 212100212221141. The reversal of 212100212221112 is 211122212001212.

It is a congruent number.

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, 4077177662 + ... + 4077229682.

It is an arithmetic number, because the mean of its divisors is an integer number (6389182072350).

Almost surely, 2^{212100212221112} is an apocalyptic number.

It is an amenable number.

212100212221112 is a deficient number, since it is larger than the sum of its proper divisors (196807440409288).

212100212221112 is a wasteful number, since it uses less digits than its factorization.

212100212221112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98208 (or 98204 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 212100212221112 its reverse (211122212001212), we get a palindrome (423222424222324).

The spelling of 212100212221112 in words is "two hundred twelve trillion, one hundred billion, two hundred twelve million, two hundred twenty-one thousand, one hundred twelve".