212112530543 has 16 divisors (see below), whose sum is σ = 238847505120. Its totient is φ = 187178397696.

The previous prime is 212112530537. The next prime is 212112530563. The reversal of 212112530543 is 345035211212.

It is a cyclic number.

It is not a de Polignac number, because 212112530543 - 2⁴ = 212112530527 is a prime.

It is a super-2 number, since 2×212112530543² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212112530533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3353696 + ... + 3416357.

It is an arithmetic number, because the mean of its divisors is an integer number (14927969070).

Almost surely, 2^212112530543 is an apocalyptic number.

212112530543 is a deficient number, since it is larger than the sum of its proper divisors (26734974577).

212112530543 is a wasteful number, since it uses less digits than its factorization.

212112530543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6770186.

The product of its (nonzero) digits is 7200, while the sum is 29.

Adding to 212112530543 its reverse (345035211212), we get a palindrome (557147741755).

The spelling of 212112530543 in words is "two hundred twelve billion, one hundred twelve million, five hundred thirty thousand, five hundred forty-three".