11120222220221 has 2 divisors, whose sum is σ = 11120222220222. Its totient is φ = 11120222220220.

The previous prime is 11120222220197. The next prime is 11120222220227. The reversal of 11120222220221 is 12202222202111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9532594500100 + 1587627720121 = 3087490^2 + 1260011^2 .

It is a cyclic number.

It is not a de Polignac number, because 11120222220221 - 2¹⁴ = 11120222203837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11120222220193 and 11120222220202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11120222220227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5560111110110 + 5560111110111.

It is an arithmetic number, because the mean of its divisors is an integer number (5560111110111).

Almost surely, 2^{11120222220221} is an apocalyptic number.

It is an amenable number.

11120222220221 is a deficient number, since it is larger than the sum of its proper divisors (1).

11120222220221 is an equidigital number, since it uses as much as digits as its factorization.

11120222220221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 11120222220221 its reverse (12202222202111), we get a palindrome (23322444422332).

The spelling of 11120222220221 in words is "eleven trillion, one hundred twenty billion, two hundred twenty-two million, two hundred twenty thousand, two hundred twenty-one".