212010212221069 has 2 divisors, whose sum is σ = 212010212221070. Its totient is φ = 212010212221068.

The previous prime is 212010212221007. The next prime is 212010212221081. The reversal of 212010212221069 is 960122212010212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 211778021234025 + 232190987044 = 14552595^2 + 481862^2 .

It is a cyclic number.

It is not a de Polignac number, because 212010212221069 - 2¹⁹ = 212010211696781 is a prime.

It is a super-2 number, since 2×212010212221069² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 212010212221069.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212010212225069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005106110534 + 106005106110535.

It is an arithmetic number, because the mean of its divisors is an integer number (106005106110535).

Almost surely, 2^{212010212221069} is an apocalyptic number.

It is an amenable number.

212010212221069 is a deficient number, since it is larger than the sum of its proper divisors (1).

212010212221069 is an equidigital number, since it uses as much as digits as its factorization.

212010212221069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 31.

The spelling of 212010212221069 in words is "two hundred twelve trillion, ten billion, two hundred twelve million, two hundred twenty-one thousand, sixty-nine".