20112010212012 has 96 divisors (see below), whose sum is σ = 49947586476480. Its totient is φ = 6276758691840.

The previous prime is 20112010211989. The next prime is 20112010212031. The reversal of 20112010212012 is 21021201021102.

It is a junction number, because it is equal to n+sod(n) for n = 20112010211982 and 20112010212000.

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, 332284312 + ... + 332344832.

It is an arithmetic number, because the mean of its divisors is an integer number (520287359130).

Almost surely, 2^{20112010212012} 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 20112010212012, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (24973793238240).

20112010212012 is an abundant number, since it is smaller than the sum of its proper divisors (29835576264468).

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

20112010212012 is a wasteful number, since it uses less digits than its factorization.

20112010212012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69011 (or 69009 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 20112010212012 its reverse (21021201021102), we get a palindrome (41133211233114).

The spelling of 20112010212012 in words is "twenty trillion, one hundred twelve billion, ten million, two hundred twelve thousand, twelve".