1210322100109 has 2 divisors, whose sum is σ = 1210322100110. Its totient is φ = 1210322100108.

The previous prime is 1210322100079. The next prime is 1210322100139. The reversal of 1210322100109 is 9010012230121.

It is a balanced prime because it is at equal distance from previous prime (1210322100079) and next prime (1210322100139).

It can be written as a sum of positive squares in only one way, i.e., 1056228952900 + 154093147209 = 1027730^2 + 392547^2 .

It is a cyclic number.

It is not a de Polignac number, because 1210322100109 - 2¹⁷ = 1210321969037 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1210322100109.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1210322100139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 605161050054 + 605161050055.

It is an arithmetic number, because the mean of its divisors is an integer number (605161050055).

Almost surely, 2^{1210322100109} is an apocalyptic number.

It is an amenable number.

1210322100109 is a deficient number, since it is larger than the sum of its proper divisors (1).

1210322100109 is an equidigital number, since it uses as much as digits as its factorization.

1210322100109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The spelling of 1210322100109 in words is "one trillion, two hundred ten billion, three hundred twenty-two million, one hundred thousand, one hundred nine".