11021102221121 has 2 divisors, whose sum is σ = 11021102221122. Its totient is φ = 11021102221120.

The previous prime is 11021102221081. The next prime is 11021102221133. The reversal of 11021102221121 is 12112220112011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7211969331121 + 3809132890000 = 2685511^2 + 1951700^2 .

It is an emirp because it is prime and its reverse (12112220112011) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11021102221121 - 2⁴² = 6623055710017 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11021102221121.

It is not a weakly prime, because it can be changed into another prime (11021102221321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510551110560 + 5510551110561.

It is an arithmetic number, because the mean of its divisors is an integer number (5510551110561).

Almost surely, 2^{11021102221121} is an apocalyptic number.

It is an amenable number.

11021102221121 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021102221121 is an equidigital number, since it uses as much as digits as its factorization.

11021102221121 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 17.

Adding to 11021102221121 its reverse (12112220112011), we get a palindrome (23133322333132).

The spelling of 11021102221121 in words is "eleven trillion, twenty-one billion, one hundred two million, two hundred twenty-one thousand, one hundred twenty-one".