20001012200022 has 64 divisors (see below), whose sum is σ = 46499273856000. Its totient is φ = 5616874558080.

The previous prime is 20001012200009. The next prime is 20001012200053. The reversal of 20001012200022 is 22000221010002.

It is a junction number, because it is equal to n+sod(n) for n = 20001012199980 and 20001012200007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 794104 + ... + 6374372.

It is an arithmetic number, because the mean of its divisors is an integer number (726551154000).

Almost surely, 2^{20001012200022} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20001012200022, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23249636928000).

20001012200022 is an abundant number, since it is smaller than the sum of its proper divisors (26498261655978).

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

20001012200022 is a wasteful number, since it uses less digits than its factorization.

20001012200022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5581741.

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 20001012200022 its reverse (22000221010002), we get a palindrome (42001233210024).

The spelling of 20001012200022 in words is "twenty trillion, one billion, twelve million, two hundred thousand, twenty-two".