201201021212069 has 2 divisors, whose sum is σ = 201201021212070. Its totient is φ = 201201021212068.

The previous prime is 201201021212057. The next prime is 201201021212071. The reversal of 201201021212069 is 960212120102102.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 197965969321444 + 3235051890625 = 14070038^2 + 1798625^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201201021212069 is a prime.

It is a super-2 number, since 2×201201021212069² (a number of 29 digits) contains 22 as substring.

Together with 201201021212071, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201201021212369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600510606034 + 100600510606035.

It is an arithmetic number, because the mean of its divisors is an integer number (100600510606035).

Almost surely, 2^{201201021212069} is an apocalyptic number.

It is an amenable number.

201201021212069 is a deficient number, since it is larger than the sum of its proper divisors (1).

201201021212069 is an equidigital number, since it uses as much as digits as its factorization.

201201021212069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 29.

The spelling of 201201021212069 in words is "two hundred one trillion, two hundred one billion, twenty-one million, two hundred twelve thousand, sixty-nine".