20001002201010 has 48 divisors (see below), whose sum is σ = 53211968656704. Its totient is φ = 5209563362976.

The previous prime is 20001002201003. The next prime is 20001002201041. The reversal of 20001002201010 is 1010220010002.

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 = 20001002200983 and 20001002201001.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2584104942 + ... + 2584112681.

It is an arithmetic number, because the mean of its divisors is an integer number (1108582680348).

Almost surely, 2^{20001002201010} is an apocalyptic number.

20001002201010 is an abundant number, since it is smaller than the sum of its proper divisors (33210966455694).

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

20001002201010 is a wasteful number, since it uses less digits than its factorization.

20001002201010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5168217679 (or 5168217676 counting only the distinct ones).

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

Adding to 20001002201010 its reverse (1010220010002), we get a palindrome (21011222211012).

The spelling of 20001002201010 in words is "twenty trillion, one billion, two million, two hundred one thousand, ten".