211212412043 has 4 divisors (see below), whose sum is σ = 211269208560. Its totient is φ = 211155615528.

The previous prime is 211212412031. The next prime is 211212412109. The reversal of 211212412043 is 340214212112.

211212412043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 211212412043 - 2¹⁰ = 211212411019 is a prime.

It is a super-2 number, since 2×211212412043² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211212442043) 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 3 ways as a sum of consecutive naturals, for example, 28392680 + ... + 28400117.

It is an arithmetic number, because the mean of its divisors is an integer number (52817302140).

Almost surely, 2^211212412043 is an apocalyptic number.

211212412043 is a deficient number, since it is larger than the sum of its proper divisors (56796517).

211212412043 is an equidigital number, since it uses as much as digits as its factorization.

211212412043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56796516.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 211212412043 its reverse (340214212112), we get a palindrome (551426624155).

The spelling of 211212412043 in words is "two hundred eleven billion, two hundred twelve million, four hundred twelve thousand, forty-three".