212000120111209 has 2 divisors, whose sum is σ = 212000120111210. Its totient is φ = 212000120111208.

The previous prime is 212000120111113. The next prime is 212000120111231. The reversal of 212000120111209 is 902111021000212.

It is an a-pointer prime, because the next prime (212000120111231) can be obtained adding 212000120111209 to its sum of digits (22).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 145352440688400 + 66647679422809 = 12056220^2 + 8163803^2 .

It is a cyclic number.

It is not a de Polignac number, because 212000120111209 - 2⁷ = 212000120111081 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 212000120111209.

It is not a weakly prime, because it can be changed into another prime (212000120118209) 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, 106000060055604 + 106000060055605.

It is an arithmetic number, because the mean of its divisors is an integer number (106000060055605).

Almost surely, 2^{212000120111209} is an apocalyptic number.

It is an amenable number.

212000120111209 is a deficient number, since it is larger than the sum of its proper divisors (1).

212000120111209 is an equidigital number, since it uses as much as digits as its factorization.

212000120111209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 212000120111209 in words is "two hundred twelve trillion, one hundred twenty million, one hundred eleven thousand, two hundred nine".