12001001112020 has 12 divisors (see below), whose sum is σ = 25202102335284. Its totient is φ = 4800400444800.

The previous prime is 12001001112019. The next prime is 12001001112041. The reversal of 12001001112020 is 2021110010021.

It can be written as a sum of positive squares in 2 ways, for example, as 3796878279364 + 8204122832656 = 1948558^2 + 2864284^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12001001111992 and 12001001112010.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300025027781 + ... + 300025027820.

It is an arithmetic number, because the mean of its divisors is an integer number (2100175194607).

Almost surely, 2^{12001001112020} is an apocalyptic number.

12001001112020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12001001112020 is an abundant number, since it is smaller than the sum of its proper divisors (13201101223264).

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

12001001112020 is a wasteful number, since it uses less digits than its factorization.

12001001112020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 600050055610 (or 600050055608 counting only the distinct ones).

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

Adding to 12001001112020 its reverse (2021110010021), we get a palindrome (14022111122041).

The spelling of 12001001112020 in words is "twelve trillion, one billion, one million, one hundred twelve thousand, twenty".