2122212019309 has 2 divisors, whose sum is σ = 2122212019310. Its totient is φ = 2122212019308.

The previous prime is 2122212019271. The next prime is 2122212019321. The reversal of 2122212019309 is 9039102122212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1893940202025 + 228271817284 = 1376205^2 + 477778^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122212019309 - 2¹⁵ = 2122211986541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2122212019349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061106009654 + 1061106009655.

It is an arithmetic number, because the mean of its divisors is an integer number (1061106009655).

Almost surely, 2^{2122212019309} is an apocalyptic number.

It is an amenable number.

2122212019309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122212019309 is an equidigital number, since it uses as much as digits as its factorization.

2122212019309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The spelling of 2122212019309 in words is "two trillion, one hundred twenty-two billion, two hundred twelve million, nineteen thousand, three hundred nine".