1100313320221 has 2 divisors, whose sum is σ = 1100313320222. Its totient is φ = 1100313320220.

The previous prime is 1100313320173. The next prime is 1100313320237. The reversal of 1100313320221 is 1220233130011.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 762328056996 + 337985263225 = 873114^2 + 581365^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100313320221 - 2¹⁵ = 1100313287453 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1100313320621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550156660110 + 550156660111.

It is an arithmetic number, because the mean of its divisors is an integer number (550156660111).

Almost surely, 2^{1100313320221} is an apocalyptic number.

It is an amenable number.

1100313320221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100313320221 is an equidigital number, since it uses as much as digits as its factorization.

1100313320221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1100313320221 its reverse (1220233130011), we get a palindrome (2320546450232).

The spelling of 1100313320221 in words is "one trillion, one hundred billion, three hundred thirteen million, three hundred twenty thousand, two hundred twenty-one".