1000002020001 has 8 divisors (see below), whose sum is σ = 1333340841120. Its totient is φ = 666665606112.

The previous prime is 1000002019897. The next prime is 1000002020023. The reversal of 1000002020001 is 1000202000001.

It is a happy number.

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

It is not a de Polignac number, because 1000002020001 - 2²¹ = 999999922849 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1000002020041) 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 in 7 ways as a sum of consecutive naturals, for example, 910170 + ... + 1681788.

It is an arithmetic number, because the mean of its divisors is an integer number (166667605140).

Almost surely, 2^{1000002020001} is an apocalyptic number.

It is an amenable number.

1000002020001 is a deficient number, since it is larger than the sum of its proper divisors (333338821119).

1000002020001 is an equidigital number, since it uses as much as digits as its factorization.

1000002020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203615.

The product of its (nonzero) digits is 4, while the sum is 6.

Adding to 1000002020001 its reverse (1000202000001), we get a palindrome (2000204020002).

The spelling of 1000002020001 in words is "one trillion, two million, twenty thousand, one".