212130110020 has 48 divisors (see below), whose sum is σ = 460951086960. Its totient is φ = 81905363456.

The previous prime is 212130109979. The next prime is 212130110057. The reversal of 212130110020 is 20011031212.

It can be written as a sum of positive squares in 8 ways, for example, as 5492588544 + 206637521476 = 74112^2 + 454574^2 .

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 15 ways as a sum of consecutive naturals, for example, 2352894 + ... + 2441386.

It is an arithmetic number, because the mean of its divisors is an integer number (9603147645).

Almost surely, 2^212130110020 is an apocalyptic number.

212130110020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212130110020 is an abundant number, since it is smaller than the sum of its proper divisors (248820976940).

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

212130110020 is a wasteful number, since it uses less digits than its factorization.

212130110020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92664 (or 92662 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 212130110020 its reverse (20011031212), we get a palindrome (232141141232).

The spelling of 212130110020 in words is "two hundred twelve billion, one hundred thirty million, one hundred ten thousand, twenty".