1100200220021 has 16 divisors (see below), whose sum is σ = 1260945240576. Its totient is φ = 940349195136.

The previous prime is 1100200219991. The next prime is 1100200220023. The reversal of 1100200220021 is 1200220020011.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1100200220021 - 2³⁸ = 825322313077 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100200219984 and 1100200220011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100200220023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28077575 + ... + 28116731.

It is an arithmetic number, because the mean of its divisors is an integer number (78809077536).

Almost surely, 2^{1100200220021} is an apocalyptic number.

It is an amenable number.

1100200220021 is a deficient number, since it is larger than the sum of its proper divisors (160745020555).

1100200220021 is a wasteful number, since it uses less digits than its factorization.

1100200220021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50468.

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 1100200220021 its reverse (1200220020011), we get a palindrome (2300420240032).

The spelling of 1100200220021 in words is "one trillion, one hundred billion, two hundred million, two hundred twenty thousand, twenty-one".