20001010002012 has 144 divisors (see below), whose sum is σ = 57319511208960. Its totient is φ = 5829574852224.

The previous prime is 20001010002011. The next prime is 20001010002019. The reversal of 20001010002012 is 21020001010002.

It is a super-2 number, since 2×20001010002012² (a number of 27 digits) contains 22 as substring.

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 = 20001010001985 and 20001010002003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20001010002011) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 78896653 + ... + 79149755.

Almost surely, 2^{20001010002012} 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 20001010002012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28659755604480).

20001010002012 is an abundant number, since it is smaller than the sum of its proper divisors (37318501206948).

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

20001010002012 is a wasteful number, since it uses less digits than its factorization.

20001010002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262032 (or 262027 counting only the distinct ones).

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

Adding to 20001010002012 its reverse (21020001010002), we get a palindrome (41021011012014).

The spelling of 20001010002012 in words is "twenty trillion, one billion, ten million, two thousand, twelve".