20001001113012 has 216 divisors, whose sum is σ = 51929146029600. Its totient is φ = 5989934021632.

The previous prime is 20001001112987. The next prime is 20001001113101. The reversal of 20001001113012 is 21031110010002.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 933786439 + ... + 933807857.

It is an arithmetic number, because the mean of its divisors is an integer number (240412713100).

Almost surely, 2^{20001001113012} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20001001113012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25964573014800).

20001001113012 is an abundant number, since it is smaller than the sum of its proper divisors (31928144916588).

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

20001001113012 is a wasteful number, since it uses less digits than its factorization.

20001001113012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22015 (or 21973 counting only the distinct ones).

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

Adding to 20001001113012 its reverse (21031110010002), we get a palindrome (41032111123014).

The spelling of 20001001113012 in words is "twenty trillion, one billion, one million, one hundred thirteen thousand, twelve".