1001221320283 has 2 divisors, whose sum is σ = 1001221320284. Its totient is φ = 1001221320282.

The previous prime is 1001221320269. The next prime is 1001221320289. The reversal of 1001221320283 is 3820231221001.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1001221320283 - 2²¹ = 1001219223131 is a prime.

It is not a weakly prime, because it can be changed into another prime (1001221320289) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 500610660141 + 500610660142.

It is an arithmetic number, because the mean of its divisors is an integer number (500610660142).

Almost surely, 2^{1001221320283} is an apocalyptic number.

1001221320283 is a deficient number, since it is larger than the sum of its proper divisors (1).

1001221320283 is an equidigital number, since it uses as much as digits as its factorization.

1001221320283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1152, while the sum is 25.

Adding to 1001221320283 its reverse (3820231221001), we get a palindrome (4821452541284).

The spelling of 1001221320283 in words is "one trillion, one billion, two hundred twenty-one million, three hundred twenty thousand, two hundred eighty-three".