1100200121205 has 16 divisors (see below), whose sum is σ = 1785113437824. Its totient is φ = 578508983360.

The previous prime is 1100200121173. The next prime is 1100200121243. The reversal of 1100200121205 is 5021210020011.

It is not a de Polignac number, because 1100200121205 - 2⁵ = 1100200121173 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 516524814 + ... + 516526943.

It is an arithmetic number, because the mean of its divisors is an integer number (111569589864).

Almost surely, 2^{1100200121205} is an apocalyptic number.

1100200121205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1100200121205 is a deficient number, since it is larger than the sum of its proper divisors (684913316619).

1100200121205 is a wasteful number, since it uses less digits than its factorization.

1100200121205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1033051836.

The product of its (nonzero) digits is 40, while the sum is 15.

Adding to 1100200121205 its reverse (5021210020011), we get a palindrome (6121410141216).

The spelling of 1100200121205 in words is "one trillion, one hundred billion, two hundred million, one hundred twenty-one thousand, two hundred five".