212100212202112 has 64 divisors (see below), whose sum is σ = 455197868163360. Its totient is φ = 97859891727360.

The previous prime is 212100212202103. The next prime is 212100212202113. The reversal of 212100212202112 is 211202212001212.

It is a tau number, because it is divible by the number of its divisors (64).

It is a self number, because there is not a number n which added to its sum of digits gives 212100212202112.

It is not an unprimeable number, because it can be changed into a prime (212100212202113) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16156098 + ... + 26176705.

Almost surely, 2^{212100212202112} is an apocalyptic number.

It is an amenable number.

212100212202112 is an abundant number, since it is smaller than the sum of its proper divisors (243097655961248).

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

212100212202112 is a wasteful number, since it uses less digits than its factorization.

212100212202112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42335841 (or 42335829 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 212100212202112 its reverse (211202212001212), we get a palindrome (423302424203324).

It can be divided in two parts, 212100 and 212202112, that added together give a palindrome (212414212).

The spelling of 212100212202112 in words is "two hundred twelve trillion, one hundred billion, two hundred twelve million, two hundred two thousand, one hundred twelve".