212200000189 has 2 divisors, whose sum is σ = 212200000190. Its totient is φ = 212200000188.

The previous prime is 212200000171. The next prime is 212200000193. The reversal of 212200000189 is 981000002212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 155446467289 + 56753532900 = 394267^2 + 238230^2 .

It is a cyclic number.

It is not a de Polignac number, because 212200000189 - 2²⁹ = 211663129277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212200000109) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106100000094 + 106100000095.

It is an arithmetic number, because the mean of its divisors is an integer number (106100000095).

Almost surely, 2^212200000189 is an apocalyptic number.

It is an amenable number.

212200000189 is a deficient number, since it is larger than the sum of its proper divisors (1).

212200000189 is an equidigital number, since it uses as much as digits as its factorization.

212200000189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 25.

The spelling of 212200000189 in words is "two hundred twelve billion, two hundred million, one hundred eighty-nine", and thus it is an aban number.