11021012211217 has 2 divisors, whose sum is σ = 11021012211218. Its totient is φ = 11021012211216.

The previous prime is 11021012211193. The next prime is 11021012211247. The reversal of 11021012211217 is 71211221012011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6452229935376 + 4568782275841 = 2540124^2 + 2137471^2 .

It is a cyclic number.

It is not a de Polignac number, because 11021012211217 - 2⁷ = 11021012211089 is a prime.

It is not a weakly prime, because it can be changed into another prime (11021012211247) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5510506105608 + 5510506105609.

It is an arithmetic number, because the mean of its divisors is an integer number (5510506105609).

Almost surely, 2^{11021012211217} is an apocalyptic number.

It is an amenable number.

11021012211217 is a deficient number, since it is larger than the sum of its proper divisors (1).

11021012211217 is an equidigital number, since it uses as much as digits as its factorization.

11021012211217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112, while the sum is 22.

Adding to 11021012211217 its reverse (71211221012011), we get a palindrome (82232233223228).

The spelling of 11021012211217 in words is "eleven trillion, twenty-one billion, twelve million, two hundred eleven thousand, two hundred seventeen".