12001101201020 has 48 divisors (see below), whose sum is σ = 26338712053248. Its totient is φ = 4584628614720.

The previous prime is 12001101200969. The next prime is 12001101201121. The reversal of 12001101201020 is 2010210110021.

It is a junction number, because it is equal to n+sod(n) for n = 12001101200992 and 12001101201010.

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, 19864166 + ... + 20459405.

It is an arithmetic number, because the mean of its divisors is an integer number (548723167776).

Almost surely, 2^{12001101201020} is an apocalyptic number.

12001101201020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001101201020 is an abundant number, since it is smaller than the sum of its proper divisors (14337610852228).

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

12001101201020 is a wasteful number, since it uses less digits than its factorization.

12001101201020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40324250 (or 40324248 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 12001101201020 its reverse (2010210110021), we get a palindrome (14011311311041).

The spelling of 12001101201020 in words is "twelve trillion, one billion, one hundred one million, two hundred one thousand, twenty".