1100200021209 has 12 divisors (see below), whose sum is σ = 1589202030000. Its totient is φ = 733455501624.

The previous prime is 1100200021177. The next prime is 1100200021229. The reversal of 1100200021209 is 9021200020011.

It is not a de Polignac number, because 1100200021209 - 2⁵ = 1100200021177 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100200021191 and 1100200021200.

It is not an unprimeable number, because it can be changed into a prime (1100200021229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 284659 + ... + 1510440.

It is an arithmetic number, because the mean of its divisors is an integer number (132433502500).

Almost surely, 2^{1100200021209} is an apocalyptic number.

It is an amenable number.

1100200021209 is a deficient number, since it is larger than the sum of its proper divisors (489002008791).

1100200021209 is a wasteful number, since it uses less digits than its factorization.

1100200021209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1863204 (or 1863201 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

The spelling of 1100200021209 in words is "one trillion, one hundred billion, two hundred million, twenty-one thousand, two hundred nine".