1101122001209 has 2 divisors, whose sum is σ = 1101122001210. Its totient is φ = 1101122001208.

The previous prime is 1101122001179. The next prime is 1101122001227. The reversal of 1101122001209 is 9021002211011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 860209875625 + 240912125584 = 927475^2 + 490828^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1101122001209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101122001229) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550561000604 + 550561000605.

It is an arithmetic number, because the mean of its divisors is an integer number (550561000605).

Almost surely, 2^{1101122001209} is an apocalyptic number.

It is an amenable number.

1101122001209 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101122001209 is an equidigital number, since it uses as much as digits as its factorization.

1101122001209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 20.

The spelling of 1101122001209 in words is "one trillion, one hundred one billion, one hundred twenty-two million, one thousand, two hundred nine".