212043320442 has 96 divisors (see below), whose sum is σ = 466905174528. Its totient is φ = 69541452288.

The previous prime is 212043320413. The next prime is 212043320471. The reversal of 212043320442 is 244023340212.

212043320442 is a `hidden beast` number, since 2 + 1 + 20 + 433 + 204 + 4 + 2 = 666.

212043320442 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212043320413) and next prime (212043320471).

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 47 ways as a sum of consecutive naturals, for example, 289281108 + ... + 289281840.

It is an arithmetic number, because the mean of its divisors is an integer number (4863595568).

Almost surely, 2^212043320442 is an apocalyptic number.

212043320442 is an abundant number, since it is smaller than the sum of its proper divisors (254861854086).

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

212043320442 is a wasteful number, since it uses less digits than its factorization.

212043320442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1641 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 212043320442 its reverse (244023340212), we get a palindrome (456066660654).

The spelling of 212043320442 in words is "two hundred twelve billion, forty-three million, three hundred twenty thousand, four hundred forty-two".