1222120102309 has 2 divisors, whose sum is σ = 1222120102310. Its totient is φ = 1222120102308.

The previous prime is 1222120102289. The next prime is 1222120102349. The reversal of 1222120102309 is 9032010212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1146066597025 + 76053505284 = 1070545^2 + 275778^2 .

It is an emirp because it is prime and its reverse (9032010212221) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1222120102309 - 2³¹ = 1219972618661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222120102349) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611060051154 + 611060051155.

It is an arithmetic number, because the mean of its divisors is an integer number (611060051155).

Almost surely, 2^{1222120102309} is an apocalyptic number.

It is an amenable number.

1222120102309 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222120102309 is an equidigital number, since it uses as much as digits as its factorization.

1222120102309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 864, while the sum is 25.

The spelling of 1222120102309 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred two thousand, three hundred nine".