20001002201012 has 36 divisors (see below), whose sum is σ = 43111403911044. Its totient is φ = 8067631138560.

The previous prime is 20001002201003. The next prime is 20001002201041. The reversal of 20001002201012 is 21010220010002.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 12641750914576 + 7359251286436 = 3555524^2 + 2712794^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20001002200984 and 20001002201002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3001347539 + ... + 3001354202.

It is an arithmetic number, because the mean of its divisors is an integer number (1197538997529).

Almost surely, 2^{20001002201012} is an apocalyptic number.

It is an amenable number.

20001002201012 is an abundant number, since it is smaller than the sum of its proper divisors (23110401710032).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20001002201012 is a wasteful number, since it uses less digits than its factorization.

20001002201012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6002701776 (or 6002701767 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

Adding to 20001002201012 its reverse (21010220010002), we get a palindrome (41011222211014).

The spelling of 20001002201012 in words is "twenty trillion, one billion, two million, two hundred one thousand, twelve".