2122210213309 has 2 divisors, whose sum is σ = 2122210213310. Its totient is φ = 2122210213308.

The previous prime is 2122210213307. The next prime is 2122210213327. The reversal of 2122210213309 is 9033120122212.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1726793105625 + 395417107684 = 1314075^2 + 628822^2 .

It is a cyclic number.

It is not a de Polignac number, because 2122210213309 - 2¹ = 2122210213307 is a prime.

Together with 2122210213307, 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 (2122210213303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1061105106654 + 1061105106655.

It is an arithmetic number, because the mean of its divisors is an integer number (1061105106655).

Almost surely, 2^{2122210213309} is an apocalyptic number.

It is an amenable number.

2122210213309 is a deficient number, since it is larger than the sum of its proper divisors (1).

2122210213309 is an equidigital number, since it uses as much as digits as its factorization.

2122210213309 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 28.

The spelling of 2122210213309 in words is "two trillion, one hundred twenty-two billion, two hundred ten million, two hundred thirteen thousand, three hundred nine".