1100333221321 has 2 divisors, whose sum is σ = 1100333221322. Its totient is φ = 1100333221320.

The previous prime is 1100333221249. The next prime is 1100333221411. The reversal of 1100333221321 is 1231223330011.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 655550934921 + 444782286400 = 809661^2 + 666920^2 .

It is a cyclic number.

It is not a de Polignac number, because 1100333221321 - 2³⁵ = 1065973482953 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1100333221292 and 1100333221301.

It is not a weakly prime, because it can be changed into another prime (1100333224321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550166610660 + 550166610661.

It is an arithmetic number, because the mean of its divisors is an integer number (550166610661).

Almost surely, 2^{1100333221321} is an apocalyptic number.

It is an amenable number.

1100333221321 is a deficient number, since it is larger than the sum of its proper divisors (1).

1100333221321 is an equidigital number, since it uses as much as digits as its factorization.

1100333221321 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 1100333221321 its reverse (1231223330011), we get a palindrome (2331556551332).

The spelling of 1100333221321 in words is "one trillion, one hundred billion, three hundred thirty-three million, two hundred twenty-one thousand, three hundred twenty-one".