212103130212 has 36 divisors (see below), whose sum is σ = 536875153360. Its totient is φ = 70605363312.

The previous prime is 212103130207. The next prime is 212103130249. The reversal of 212103130212 is 212031301212.

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3959698 + ... + 4012905.

Almost surely, 2^212103130212 is an apocalyptic number.

It is an amenable number.

212103130212 is an abundant number, since it is smaller than the sum of its proper divisors (324772023148).

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

212103130212 is a wasteful number, since it uses less digits than its factorization.

212103130212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7973352 (or 7973347 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 212103130212 its reverse (212031301212), we get a palindrome (424134431424).

The spelling of 212103130212 in words is "two hundred twelve billion, one hundred three million, one hundred thirty thousand, two hundred twelve".