1002002121101 has 8 divisors (see below), whose sum is σ = 1021728734208. Its totient is φ = 982431450000.

The previous prime is 1002002121089. The next prime is 1002002121103. The reversal of 1002002121101 is 1011212002001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1002002121101 - 2³⁰ = 1000928379277 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1002002121103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38972525 + ... + 38998226.

It is an arithmetic number, because the mean of its divisors is an integer number (127716091776).

Almost surely, 2^{1002002121101} is an apocalyptic number.

It is an amenable number.

1002002121101 is a deficient number, since it is larger than the sum of its proper divisors (19726613107).

1002002121101 is an equidigital number, since it uses as much as digits as its factorization.

1002002121101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77971003.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 1002002121101 its reverse (1011212002001), we get a palindrome (2013214123102).

The spelling of 1002002121101 in words is "one trillion, two billion, two million, one hundred twenty-one thousand, one hundred one".