212021330120 has 32 divisors (see below), whose sum is σ = 479545643520. Its totient is φ = 84364505280.

The previous prime is 212021330113. The next prime is 212021330189. The reversal of 212021330120 is 21033120212.

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 7 ways as a sum of consecutive naturals, for example, 13868102 + ... + 13883381.

It is an arithmetic number, because the mean of its divisors is an integer number (14985801360).

Almost surely, 2^212021330120 is an apocalyptic number.

212021330120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212021330120 is an abundant number, since it is smaller than the sum of its proper divisors (267524313400).

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

212021330120 is a wasteful number, since it uses less digits than its factorization.

212021330120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27751685 (or 27751681 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 212021330120 its reverse (21033120212), we get a palindrome (233054450332).

The spelling of 212021330120 in words is "two hundred twelve billion, twenty-one million, three hundred thirty thousand, one hundred twenty".