12020011201020 has 96 divisors (see below), whose sum is σ = 33969861414720. Its totient is φ = 3175474462720.

The previous prime is 12020011200979. The next prime is 12020011201031. The reversal of 12020011201020 is 2010211002021.

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

It is a junction number, because it is equal to n+sod(n) for n = 12020011200987 and 12020011201005.

It is a congruent number.

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, 14018260 + ... + 14850980.

It is an arithmetic number, because the mean of its divisors is an integer number (353852723070).

Almost surely, 2^{12020011201020} is an apocalyptic number.

12020011201020 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 12020011201020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16984930707360).

12020011201020 is an abundant number, since it is smaller than the sum of its proper divisors (21949850213700).

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

12020011201020 is a wasteful number, since it uses less digits than its factorization.

12020011201020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 834975 (or 834973 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 12020011201020 its reverse (2010211002021), we get a palindrome (14030222203041).

The spelling of 12020011201020 in words is "twelve trillion, twenty billion, eleven million, two hundred one thousand, twenty".