1002003022201 has 4 divisors (see below), whose sum is σ = 1009316913012. Its totient is φ = 994689131392.

The previous prime is 1002003022183. The next prime is 1002003022217. The reversal of 1002003022201 is 1022203002001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 831661922025 + 170341100176 = 911955^2 + 412724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1002003022201 - 2⁷ = 1002003022073 is a prime.

It is a super-3 number, since 3×1002003022201³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002003022261) 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 in 3 ways as a sum of consecutive naturals, for example, 3656945200 + ... + 3656945473.

It is an arithmetic number, because the mean of its divisors is an integer number (252329228253).

Almost surely, 2^{1002003022201} is an apocalyptic number.

It is an amenable number.

1002003022201 is a deficient number, since it is larger than the sum of its proper divisors (7313890811).

1002003022201 is an equidigital number, since it uses as much as digits as its factorization.

1002003022201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7313890810.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 1002003022201 its reverse (1022203002001), we get a palindrome (2024206024202).

The spelling of 1002003022201 in words is "one trillion, two billion, three million, twenty-two thousand, two hundred one".