20011112001012 has 48 divisors (see below), whose sum is σ = 50954626360512. Its totient is φ = 6061919719680.

The previous prime is 20011112000959. The next prime is 20011112001121. The reversal of 20011112001012 is 21010021111002.

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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 25278903 + ... + 26058494.

It is an arithmetic number, because the mean of its divisors is an integer number (1061554715844).

Almost surely, 2^{20011112001012} is an apocalyptic number.

20011112001012 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

20011112001012 is an abundant number, since it is smaller than the sum of its proper divisors (30943514359500).

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

20011112001012 is a wasteful number, since it uses less digits than its factorization.

20011112001012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51340368 (or 51340366 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 20011112001012 its reverse (21010021111002), we get a palindrome (41021133112014).

The spelling of 20011112001012 in words is "twenty trillion, eleven billion, one hundred twelve million, one thousand, twelve".