20010001002002 has 32 divisors (see below), whose sum is σ = 33068543048064. Its totient is φ = 9005207472000.

The previous prime is 20010001001983. The next prime is 20010001002023. The reversal of 20010001002002 is 20020010001002.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 172953758 + ... + 173069414.

It is an arithmetic number, because the mean of its divisors is an integer number (1033391970252).

Almost surely, 2^{20010001002002} is an apocalyptic number.

20010001002002 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20010001002002 is a deficient number, since it is larger than the sum of its proper divisors (13058542046062).

20010001002002 is a wasteful number, since it uses less digits than its factorization.

20010001002002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193634.

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

Adding to 20010001002002 its reverse (20020010001002), we get a palindrome (40030011003004).

The spelling of 20010001002002 in words is "twenty trillion, ten billion, one million, two thousand, two".