1100200112001 has 24 divisors (see below), whose sum is σ = 1605176637480. Its totient is φ = 726098397696.

The previous prime is 1100200111963. The next prime is 1100200112023. The reversal of 1100200112001 is 1002110020011.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 70025861376 + 1030174250625 = 264624^2 + 1014975^2 .

It is not a de Polignac number, because 1100200112001 - 2²² = 1100195917697 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is not an unprimeable number, because it can be changed into a prime (1100200112051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 190615 + ... + 1495571.

It is an arithmetic number, because the mean of its divisors is an integer number (66882359895).

Almost surely, 2^{1100200112001} is an apocalyptic number.

It is an amenable number.

1100200112001 is a deficient number, since it is larger than the sum of its proper divisors (504976525479).

1100200112001 is a wasteful number, since it uses less digits than its factorization.

1100200112001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305905 (or 1305902 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 1100200112001 its reverse (1002110020011), we get a palindrome (2102310132012).

It can be divided in two parts, 1100200 and 112001, that added together give a square (1212201 = 1101²).

The spelling of 1100200112001 in words is "one trillion, one hundred billion, two hundred million, one hundred twelve thousand, one".