212130131021 has 8 divisors (see below), whose sum is σ = 216849719424. Its totient is φ = 207419133600.

The previous prime is 212130131011. The next prime is 212130131047. The reversal of 212130131021 is 120131031212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212130131021 - 2³⁰ = 211056389197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212130131011) 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, 2097800 + ... + 2196593.

It is an arithmetic number, because the mean of its divisors is an integer number (27106214928).

Almost surely, 2^212130131021 is an apocalyptic number.

It is an amenable number.

212130131021 is a deficient number, since it is larger than the sum of its proper divisors (4719588403).

212130131021 is a wasteful number, since it uses less digits than its factorization.

212130131021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4295491.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 212130131021 its reverse (120131031212), we get a palindrome (332261162233).

The spelling of 212130131021 in words is "two hundred twelve billion, one hundred thirty million, one hundred thirty-one thousand, twenty-one".