11100222020021 has 2 divisors, whose sum is σ = 11100222020022. Its totient is φ = 11100222020020.

The previous prime is 11100222020011. The next prime is 11100222020033. The reversal of 11100222020021 is 12002022200111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7661608097521 + 3438613922500 = 2767961^2 + 1854350^2 .

It is a cyclic number.

It is not a de Polignac number, because 11100222020021 - 2¹⁰ = 11100222018997 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 11100222019978 and 11100222020005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11100222020011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550111010010 + 5550111010011.

It is an arithmetic number, because the mean of its divisors is an integer number (5550111010011).

Almost surely, 2^{11100222020021} is an apocalyptic number.

It is an amenable number.

11100222020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100222020021 is an equidigital number, since it uses as much as digits as its factorization.

11100222020021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 11100222020021 its reverse (12002022200111), we get a palindrome (23102244220132).

The spelling of 11100222020021 in words is "eleven trillion, one hundred billion, two hundred twenty-two million, twenty thousand, twenty-one".