11122221021017 has 2 divisors, whose sum is σ = 11122221021018. Its totient is φ = 11122221021016.

The previous prime is 11122221020993. The next prime is 11122221021049. The reversal of 11122221021017 is 71012012222111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8960347771456 + 2161873249561 = 2993384^2 + 1470331^2 .

It is a cyclic number.

It is not a de Polignac number, because 11122221021017 - 2¹⁰ = 11122221019993 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11122221020983 and 11122221021001.

It is not a weakly prime, because it can be changed into another prime (11122221021077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5561110510508 + 5561110510509.

It is an arithmetic number, because the mean of its divisors is an integer number (5561110510509).

Almost surely, 2^{11122221021017} is an apocalyptic number.

It is an amenable number.

11122221021017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11122221021017 is an equidigital number, since it uses as much as digits as its factorization.

11122221021017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 23.

Adding to 11122221021017 its reverse (71012012222111), we get a palindrome (82134233243128).

The spelling of 11122221021017 in words is "eleven trillion, one hundred twenty-two billion, two hundred twenty-one million, twenty-one thousand, seventeen".