20112000121120 has 48 divisors (see below), whose sum is σ = 48673492991928. Its totient is φ = 7848585410560.

The previous prime is 20112000121063. The next prime is 20112000121121. The reversal of 20112000121120 is 2112100021102.

It can be written as a sum of positive squares in 4 ways, for example, as 12152446993296 + 7959553127824 = 3486036^2 + 2821268^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 20112000121120.

It is not an unprimeable number, because it can be changed into a prime (20112000121121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1532920279 + ... + 1532933398.

Almost surely, 2^{20112000121120} is an apocalyptic number.

20112000121120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20112000121120 is an abundant number, since it is smaller than the sum of its proper divisors (28561492870808).

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

20112000121120 is a wasteful number, since it uses less digits than its factorization.

20112000121120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3065853733 (or 3065853725 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 20112000121120 its reverse (2112100021102), we get a palindrome (22224100142222).

The spelling of 20112000121120 in words is "twenty trillion, one hundred twelve billion, one hundred twenty-one thousand, one hundred twenty".