212142441340 has 48 divisors (see below), whose sum is σ = 455514220224. Its totient is φ = 82966003200.

The previous prime is 212142441323. The next prime is 212142441349. The reversal of 212142441340 is 43144241212.

212142441340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 212142441299 and 212142441308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212142441349) by changing a digit.

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, 316881 + ... + 724360.

It is an arithmetic number, because the mean of its divisors is an integer number (9489879588).

Almost surely, 2^212142441340 is an apocalyptic number.

212142441340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212142441340 is an abundant number, since it is smaller than the sum of its proper divisors (243371778884).

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

212142441340 is a wasteful number, since it uses less digits than its factorization.

212142441340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1041478 (or 1041476 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 212142441340 its reverse (43144241212), we get a palindrome (255286682552).

The spelling of 212142441340 in words is "two hundred twelve billion, one hundred forty-two million, four hundred forty-one thousand, three hundred forty".