11200020221021 has 4 divisors (see below), whose sum is σ = 11208249480444. Its totient is φ = 11191790961600.

The previous prime is 11200020220993. The next prime is 11200020221053. The reversal of 11200020221021 is 12012202000211.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1605823718521 + 9594196502500 = 1267211^2 + 3097450^2 .

It is a cyclic number.

It is not a de Polignac number, because 11200020221021 - 2⁴² = 6801973709917 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11200020220987 and 11200020221005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11200020220021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4114627670 + ... + 4114630391.

It is an arithmetic number, because the mean of its divisors is an integer number (2802062370111).

Almost surely, 2^{11200020221021} is an apocalyptic number.

It is an amenable number.

11200020221021 is a deficient number, since it is larger than the sum of its proper divisors (8229259423).

11200020221021 is an equidigital number, since it uses as much as digits as its factorization.

11200020221021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8229259422.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 11200020221021 its reverse (12012202000211), we get a palindrome (23212222221232).

The spelling of 11200020221021 in words is "eleven trillion, two hundred billion, twenty million, two hundred twenty-one thousand, twenty-one".