20001012200010 has 32 divisors (see below), whose sum is σ = 53336032534080. Its totient is φ = 5333603253264.

The previous prime is 20001012200009. The next prime is 20001012200053. The reversal of 20001012200010 is 1000221010002.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 20001012199965 and 20001012200001.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 37038911212 + ... + 37038911751.

It is an arithmetic number, because the mean of its divisors is an integer number (1666751016690).

Almost surely, 2^{20001012200010} is an apocalyptic number.

20001012200010 is an abundant number, since it is smaller than the sum of its proper divisors (33335020334070).

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

20001012200010 is a wasteful number, since it uses less digits than its factorization.

20001012200010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74077822979 (or 74077822973 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

Adding to 20001012200010 its reverse (1000221010002), we get a palindrome (21001233210012).

The spelling of 20001012200010 in words is "twenty trillion, one billion, twelve million, two hundred thousand, ten".