1101101209 has 16 divisors (see below), whose sum is σ = 1205568000. Its totient is φ = 999596736.

The previous prime is 1101101201. The next prime is 1101101219. The reversal of 1101101209 is 9021011011.

It is a cyclic number.

It is not a de Polignac number, because 1101101209 - 2³ = 1101101201 is a prime.

It is a super-2 number, since 2×1101101209² = 2424847744922523362, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1101101192 and 1101101201.

It is not an unprimeable number, because it can be changed into a prime (1101101201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 196752 + ... + 202270.

It is an arithmetic number, because the mean of its divisors is an integer number (75348000).

Almost surely, 2^1101101209 is an apocalyptic number.

It is an amenable number.

1101101209 is a deficient number, since it is larger than the sum of its proper divisors (104466791).

1101101209 is a wasteful number, since it uses less digits than its factorization.

1101101209 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5784.

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

The square root of 1101101209 is about 33182.8451010458. The cubic root of 1101101209 is about 1032.6244721319.

The spelling of 1101101209 in words is "one billion, one hundred one million, one hundred one thousand, two hundred nine".