212167334389 has 2 divisors, whose sum is σ = 212167334390. Its totient is φ = 212167334388.

The previous prime is 212167334369. The next prime is 212167334581. The reversal of 212167334389 is 983433761212.

212167334389 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 129549604900 + 82617729489 = 359930^2 + 287433^2 .

It is a cyclic number.

It is not a de Polignac number, because 212167334389 - 2³¹ = 210019850741 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212167334359) 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 as a sum of consecutive naturals, namely, 106083667194 + 106083667195.

It is an arithmetic number, because the mean of its divisors is an integer number (106083667195).

Almost surely, 2^212167334389 is an apocalyptic number.

It is an amenable number.

212167334389 is a deficient number, since it is larger than the sum of its proper divisors (1).

212167334389 is an equidigital number, since it uses as much as digits as its factorization.

212167334389 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1306368, while the sum is 49.

The spelling of 212167334389 in words is "two hundred twelve billion, one hundred sixty-seven million, three hundred thirty-four thousand, three hundred eighty-nine".