212140031244 has 48 divisors (see below), whose sum is σ = 502046496000. Its totient is φ = 69706082880.

The previous prime is 212140031183. The next prime is 212140031261. The reversal of 212140031244 is 442130041212.

212140031244 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6461382 + ... + 6494130.

It is an arithmetic number, because the mean of its divisors is an integer number (10459302000).

Almost surely, 2^212140031244 is an apocalyptic number.

It is an amenable number.

212140031244 is an abundant number, since it is smaller than the sum of its proper divisors (289906464756).

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

212140031244 is a wasteful number, since it uses less digits than its factorization.

212140031244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40430 (or 40428 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 212140031244 its reverse (442130041212), we get a palindrome (654270072456).

The spelling of 212140031244 in words is "two hundred twelve billion, one hundred forty million, thirty-one thousand, two hundred forty-four".