212012000989 has 2 divisors, whose sum is σ = 212012000990. Its totient is φ = 212012000988.

The previous prime is 212012000987. The next prime is 212012001013. The reversal of 212012000989 is 989000210212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211825460025 + 186540964 = 460245^2 + 13658^2 .

It is a cyclic number.

It is not a de Polignac number, because 212012000989 - 2¹ = 212012000987 is a prime.

Together with 212012000987, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212012000987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106006000494 + 106006000495.

It is an arithmetic number, because the mean of its divisors is an integer number (106006000495).

Almost surely, 2^212012000989 is an apocalyptic number.

It is an amenable number.

212012000989 is a deficient number, since it is larger than the sum of its proper divisors (1).

212012000989 is an equidigital number, since it uses as much as digits as its factorization.

212012000989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 34.

The spelling of 212012000989 in words is "two hundred twelve billion, twelve million, nine hundred eighty-nine", and thus it is an aban number.