11220021000017 has 2 divisors, whose sum is σ = 11220021000018. Its totient is φ = 11220021000016.

The previous prime is 11220021000011. The next prime is 11220021000031. The reversal of 11220021000017 is 71000012002211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11144620782736 + 75400217281 = 3338356^2 + 274591^2 .

It is a cyclic number.

It is not a de Polignac number, because 11220021000017 - 2⁴⁰ = 10120509372241 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11220020999959 and 11220021000004.

It is not a weakly prime, because it can be changed into another prime (11220021000011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5610010500008 + 5610010500009.

It is an arithmetic number, because the mean of its divisors is an integer number (5610010500009).

Almost surely, 2^{11220021000017} is an apocalyptic number.

It is an amenable number.

11220021000017 is a deficient number, since it is larger than the sum of its proper divisors (1).

11220021000017 is an equidigital number, since it uses as much as digits as its factorization.

11220021000017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 17.

Adding to 11220021000017 its reverse (71000012002211), we get a palindrome (82220033002228).

The spelling of 11220021000017 in words is "eleven trillion, two hundred twenty billion, twenty-one million, seventeen", and thus it is an aban number.