1222120102109 has 2 divisors, whose sum is σ = 1222120102110. Its totient is φ = 1222120102108.

The previous prime is 1222120102097. The next prime is 1222120102127. The reversal of 1222120102109 is 9012010212221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1207794406009 + 14325696100 = 1098997^2 + 119690^2 .

It is a cyclic number.

It is not a de Polignac number, because 1222120102109 - 2³⁶ = 1153400625373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1222120102309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611060051054 + 611060051055.

It is an arithmetic number, because the mean of its divisors is an integer number (611060051055).

Almost surely, 2^{1222120102109} is an apocalyptic number.

It is an amenable number.

1222120102109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1222120102109 is an equidigital number, since it uses as much as digits as its factorization.

1222120102109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 23.

The spelling of 1222120102109 in words is "one trillion, two hundred twenty-two billion, one hundred twenty million, one hundred two thousand, one hundred nine".