2102211223109 has 2 divisors, whose sum is σ = 2102211223110. Its totient is φ = 2102211223108.

The previous prime is 2102211223081. The next prime is 2102211223139. The reversal of 2102211223109 is 9013221122012.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1909863192484 + 192348030625 = 1381978^2 + 438575^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102211223109 - 2³⁶ = 2033491746373 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102211223139) 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, 1051105611554 + 1051105611555.

It is an arithmetic number, because the mean of its divisors is an integer number (1051105611555).

Almost surely, 2^{2102211223109} is an apocalyptic number.

It is an amenable number.

2102211223109 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102211223109 is an equidigital number, since it uses as much as digits as its factorization.

2102211223109 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 26.

The spelling of 2102211223109 in words is "two trillion, one hundred two billion, two hundred eleven million, two hundred twenty-three thousand, one hundred nine".