212121475230167 has 2 divisors, whose sum is σ = 212121475230168. Its totient is φ = 212121475230166.

The previous prime is 212121475230131. The next prime is 212121475230253. The reversal of 212121475230167 is 761032574121212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 212121475230167 - 2¹⁰ = 212121475229143 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212121475230107) 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 as a sum of consecutive naturals, namely, 106060737615083 + 106060737615084.

It is an arithmetic number, because the mean of its divisors is an integer number (106060737615084).

Almost surely, 2^{212121475230167} is an apocalyptic number.

212121475230167 is a deficient number, since it is larger than the sum of its proper divisors (1).

212121475230167 is an equidigital number, since it uses as much as digits as its factorization.

212121475230167 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 282240, while the sum is 44.

The spelling of 212121475230167 in words is "two hundred twelve trillion, one hundred twenty-one billion, four hundred seventy-five million, two hundred thirty thousand, one hundred sixty-seven".