11012220200021 has 2 divisors, whose sum is σ = 11012220200022. Its totient is φ = 11012220200020.

The previous prime is 11012220199999. The next prime is 11012220200071. The reversal of 11012220200021 is 12000202221011.

11012220200021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10989655954225 + 22564245796 = 3315065^2 + 150214^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11012220200021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11012220199969 and 11012220200005.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11012220200071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5506110100010 + 5506110100011.

It is an arithmetic number, because the mean of its divisors is an integer number (5506110100011).

Almost surely, 2^{11012220200021} is an apocalyptic number.

It is an amenable number.

11012220200021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11012220200021 is an equidigital number, since it uses as much as digits as its factorization.

11012220200021 is an evil number, because the sum of its binary digits is even.

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

Adding to 11012220200021 its reverse (12000202221011), we get a palindrome (23012422421032).

The spelling of 11012220200021 in words is "eleven trillion, twelve billion, two hundred twenty million, two hundred thousand, twenty-one".