1100101010209 has 2 divisors, whose sum is σ = 1100101010210. Its totient is φ = 1100101010208.

The previous prime is 1100101010207. The next prime is 1100101010243. The reversal of 1100101010209 is 9020101010011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1017217479184 + 82883531025 = 1008572^2 + 287895^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100101010209 - 2¹ = 1100101010207 is a prime.

Together with 1100101010207, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1100101010192 and 1100101010201.

It is not a weakly prime, because it can be changed into another prime (1100101010207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550050505104 + 550050505105.

It is an arithmetic number, because the mean of its divisors is an integer number (550050505105).

Almost surely, 2^{1100101010209} is an apocalyptic number.

It is an amenable number.

1100101010209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100101010209 is an equidigital number, since it uses as much as digits as its factorization.

1100101010209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 16.

The spelling of 1100101010209 in words is "one trillion, one hundred billion, one hundred one million, ten thousand, two hundred nine".