212071133 has 2 divisors, whose sum is σ = 212071134. Its totient is φ = 212071132.

The previous prime is 212071127. The next prime is 212071151. The reversal of 212071133 is 331170212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 195244729 + 16826404 = 13973^2 + 4102^2 .

It is a cyclic number.

It is not a de Polignac number, because 212071133 - 2²⁶ = 144962269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212071183) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106035566 + 106035567.

It is an arithmetic number, because the mean of its divisors is an integer number (106035567).

Almost surely, 2^212071133 is an apocalyptic number.

It is an amenable number.

212071133 is a deficient number, since it is larger than the sum of its proper divisors (1).

212071133 is an equidigital number, since it uses as much as digits as its factorization.

212071133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 212071133 is about 14562.6622909412. The cubic root of 212071133 is about 596.3398780987.

The spelling of 212071133 in words is "two hundred twelve million, seventy-one thousand, one hundred thirty-three".