20010120002010 has 128 divisors (see below), whose sum is σ = 53667992448000. Its totient is φ = 5305329709056.

The previous prime is 20010120001997. The next prime is 20010120002039. The reversal of 20010120002010 is 1020002101002.

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 = 20010120001983 and 20010120002001.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 44230714 + ... + 44680826.

It is an arithmetic number, because the mean of its divisors is an integer number (419281191000).

Almost surely, 2^{20010120002010} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20010120002010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26833996224000).

20010120002010 is an abundant number, since it is smaller than the sum of its proper divisors (33657872445990).

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

20010120002010 is a wasteful number, since it uses less digits than its factorization.

20010120002010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451077 (or 451071 counting only the distinct ones).

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

Adding to 20010120002010 its reverse (1020002101002), we get a palindrome (21030122103012).

The spelling of 20010120002010 in words is "twenty trillion, ten billion, one hundred twenty million, two thousand, ten".