12010111000020 has 288 divisors, whose sum is σ = 42489985364736. Its totient is φ = 2689251840000.

The previous prime is 12010110999977. The next prime is 12010111000099. The reversal of 12010111000020 is 2000011101021.

It is a happy number.

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 = 12010110999966 and 12010111000011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 14887020 + ... + 15673020.

Almost surely, 2^{12010111000020} is an apocalyptic number.

12010111000020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12010111000020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21244992682368).

12010111000020 is an abundant number, since it is smaller than the sum of its proper divisors (30479874364716).

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

12010111000020 is a wasteful number, since it uses less digits than its factorization.

12010111000020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 786271 (or 786266 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 12010111000020 its reverse (2000011101021), we get a palindrome (14010122101041).

The spelling of 12010111000020 in words is "twelve trillion, ten billion, one hundred eleven million, twenty", and thus it is an aban number.