212102020021112 has 64 divisors (see below), whose sum is σ = 429113832204960. Its totient is φ = 97703479296000.

The previous prime is 212102020021091. The next prime is 212102020021183. The reversal of 212102020021112 is 211120020201212.

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, 125872583 + ... + 127546505.

Almost surely, 2^{212102020021112} is an apocalyptic number.

It is an amenable number.

212102020021112 is an abundant number, since it is smaller than the sum of its proper divisors (217011812183848).

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

212102020021112 is a wasteful number, since it uses less digits than its factorization.

212102020021112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1676304 (or 1676300 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 212102020021112 its reverse (211120020201212), we get a palindrome (423222040222324).

The spelling of 212102020021112 in words is "two hundred twelve trillion, one hundred two billion, twenty million, twenty-one thousand, one hundred twelve".