1100200011021 has 36 divisors (see below), whose sum is σ = 1636707945600. Its totient is φ = 712149569568.

The previous prime is 1100200011007. The next prime is 1100200011023. The reversal of 1100200011021 is 1201100020011.

It is a happy number.

It is not a de Polignac number, because 1100200011021 - 2³⁹ = 550444197133 is a prime.

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

It is a junction number, because it is equal to n+sod(n) for n = 1100200010994 and 1100200011012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100200011023) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 5808550 + ... + 5994968.

It is an arithmetic number, because the mean of its divisors is an integer number (45464109600).

Almost surely, 2^{1100200011021} is an apocalyptic number.

It is an amenable number.

1100200011021 is a deficient number, since it is larger than the sum of its proper divisors (536507934579).

1100200011021 is a wasteful number, since it uses less digits than its factorization.

1100200011021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186978 (or 186938 counting only the distinct ones).

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

Adding to 1100200011021 its reverse (1201100020011), we get a palindrome (2301300031032).

The spelling of 1100200011021 in words is "one trillion, one hundred billion, two hundred million, eleven thousand, twenty-one".