212115041443 has 16 divisors (see below), whose sum is σ = 225344925504. Its totient is φ = 198969799680.

The previous prime is 212115041423. The next prime is 212115041449. The reversal of 212115041443 is 344140511212.

It is a happy number.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212115041443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212115041449) by changing a digit.

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, 6875713 + ... + 6906493.

It is an arithmetic number, because the mean of its divisors is an integer number (14084057844).

Almost surely, 2^212115041443 is an apocalyptic number.

212115041443 is a deficient number, since it is larger than the sum of its proper divisors (13229884061).

212115041443 is a wasteful number, since it uses less digits than its factorization.

212115041443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32142.

The product of its (nonzero) digits is 3840, while the sum is 28.

Adding to 212115041443 its reverse (344140511212), we get a palindrome (556255552655).

The spelling of 212115041443 in words is "two hundred twelve billion, one hundred fifteen million, forty-one thousand, four hundred forty-three".