1101021213217 has 2 divisors, whose sum is σ = 1101021213218. Its totient is φ = 1101021213216.

The previous prime is 1101021213209. The next prime is 1101021213221. The reversal of 1101021213217 is 7123121201011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 590390920161 + 510630293056 = 768369^2 + 714584^2 .

It is a cyclic number.

It is not a de Polignac number, because 1101021213217 - 2³ = 1101021213209 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101021210217) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550510606608 + 550510606609.

It is an arithmetic number, because the mean of its divisors is an integer number (550510606609).

Almost surely, 2^{1101021213217} is an apocalyptic number.

It is an amenable number.

1101021213217 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101021213217 is an equidigital number, since it uses as much as digits as its factorization.

1101021213217 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 22.

Adding to 1101021213217 its reverse (7123121201011), we get a palindrome (8224142414228).

The spelling of 1101021213217 in words is "one trillion, one hundred one billion, twenty-one million, two hundred thirteen thousand, two hundred seventeen".