1100001222209 has 2 divisors, whose sum is σ = 1100001222210. Its totient is φ = 1100001222208.

The previous prime is 1100001222197. The next prime is 1100001222253. The reversal of 1100001222209 is 9022221000011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 686790097984 + 413211124225 = 828728^2 + 642815^2 .

It is an emirp because it is prime and its reverse (9022221000011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1100001222209 - 2¹⁶ = 1100001156673 is a prime.

It is a super-2 number, since 2×1100001222209² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1100001222289) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550000611104 + 550000611105.

It is an arithmetic number, because the mean of its divisors is an integer number (550000611105).

Almost surely, 2^{1100001222209} is an apocalyptic number.

It is an amenable number.

1100001222209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100001222209 is an equidigital number, since it uses as much as digits as its factorization.

1100001222209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 20.

The spelling of 1100001222209 in words is "one trillion, one hundred billion, one million, two hundred twenty-two thousand, two hundred nine".