20111010012012 has 96 divisors (see below), whose sum is σ = 48485693491200. Its totient is φ = 6481228723200.

The previous prime is 20111010011999. The next prime is 20111010012017. The reversal of 20111010012012 is 21021001011102.

20111010012012 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is not an unprimeable number, because it can be changed into a prime (20111010012017) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2696203539 + ... + 2696210997.

It is an arithmetic number, because the mean of its divisors is an integer number (505059307200).

Almost surely, 2^{20111010012012} is an apocalyptic number.

It is an amenable number.

20111010012012 is an abundant number, since it is smaller than the sum of its proper divisors (28374683479188).

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

20111010012012 is a wasteful number, since it uses less digits than its factorization.

20111010012012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13447 (or 13445 counting only the distinct ones).

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

Adding to 20111010012012 its reverse (21021001011102), we get a palindrome (41132011023114).

The spelling of 20111010012012 in words is "twenty trillion, one hundred eleven billion, ten million, twelve thousand, twelve".