212140022231443 has 4 divisors (see below), whose sum is σ = 215306291220040. Its totient is φ = 208973753242848.

The previous prime is 212140022231387. The next prime is 212140022231471. The reversal of 212140022231443 is 344132220041212.

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 212140022231443 - 2²⁵ = 212139988677011 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212140022231843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1583134494198 + ... + 1583134494331.

It is an arithmetic number, because the mean of its divisors is an integer number (53826572805010).

Almost surely, 2^{212140022231443} is an apocalyptic number.

212140022231443 is a deficient number, since it is larger than the sum of its proper divisors (3166268988597).

212140022231443 is an equidigital number, since it uses as much as digits as its factorization.

212140022231443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3166268988596.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 212140022231443 its reverse (344132220041212), we get a palindrome (556272242272655).

The spelling of 212140022231443 in words is "two hundred twelve trillion, one hundred forty billion, twenty-two million, two hundred thirty-one thousand, four hundred forty-three".