11021020222021 has 2 divisors, whose sum is σ = 11021020222022. Its totient is φ = 11021020222020.

The previous prime is 11021020222019. The next prime is 11021020222033. The reversal of 11021020222021 is 12022202012011.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6086513331396 + 4934506890625 = 2467086^2 + 2221375^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021020222021 - 2¹ = 11021020222019 is a prime.

Together with 11021020222019, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 11021020221986 and 11021020222004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11021020222921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510510111010 + 5510510111011.

It is an arithmetic number, because the mean of its divisors is an integer number (5510510111011).

Almost surely, 2^{11021020222021} is an apocalyptic number.

It is an amenable number.

11021020222021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021020222021 is an equidigital number, since it uses as much as digits as its factorization.

11021020222021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 11021020222021 its reverse (12022202012011), we get a palindrome (23043222234032).

The spelling of 11021020222021 in words is "eleven trillion, twenty-one billion, twenty million, two hundred twenty-two thousand, twenty-one".