11121022022021 has 2 divisors, whose sum is σ = 11121022022022. Its totient is φ = 11121022022020.

The previous prime is 11121022021987. The next prime is 11121022022059. The reversal of 11121022022021 is 12022022012111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11023528828900 + 97493193121 = 3320170^2 + 312239^2 .

It is a cyclic number.

It is not a de Polignac number, because 11121022022021 - 2¹⁴ = 11121022005637 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11121022022321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560511011010 + 5560511011011.

It is an arithmetic number, because the mean of its divisors is an integer number (5560511011011).

Almost surely, 2^{11121022022021} is an apocalyptic number.

It is an amenable number.

11121022022021 is a deficient number, since it is larger than the sum of its proper divisors (1).

11121022022021 is an equidigital number, since it uses as much as digits as its factorization.

11121022022021 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 17.

Adding to 11121022022021 its reverse (12022022012111), we get a palindrome (23143044034132).

The spelling of 11121022022021 in words is "eleven trillion, one hundred twenty-one billion, twenty-two million, twenty-two thousand, twenty-one".