212000130440 has 64 divisors (see below), whose sum is σ = 548294434560. Its totient is φ = 72265593600.

The previous prime is 212000130403. The next prime is 212000130467. The reversal of 212000130440 is 44031000212.

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, 2139836 + ... + 2236715.

It is an arithmetic number, because the mean of its divisors is an integer number (8567100540).

Almost surely, 2^212000130440 is an apocalyptic number.

212000130440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212000130440 is an abundant number, since it is smaller than the sum of its proper divisors (336294304120).

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

212000130440 is a wasteful number, since it uses less digits than its factorization.

212000130440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4376742 (or 4376738 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 212000130440 its reverse (44031000212), we get a palindrome (256031130652).

The spelling of 212000130440 in words is "two hundred twelve billion, one hundred thirty thousand, four hundred forty".