12100211021120 has 56 divisors (see below), whose sum is σ = 28886206204104. Its totient is φ = 4827892709376.

The previous prime is 12100211021081. The next prime is 12100211021123. The reversal of 12100211021120 is 2112011200121.

It can be written as a sum of positive squares in 4 ways, for example, as 5440425630784 + 6659785390336 = 2332472^2 + 2580656^2 .

It is a junction number, because it is equal to n+sod(n) for n = 12100211021095 and 12100211021104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12100211021123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47496587 + ... + 47750666.

Almost surely, 2^{12100211021120} is an apocalyptic number.

12100211021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12100211021120 is an abundant number, since it is smaller than the sum of its proper divisors (16785995182984).

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

12100211021120 is an equidigital number, since it uses as much as digits as its factorization.

12100211021120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95247667 (or 95247657 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 14.

Adding to 12100211021120 its reverse (2112011200121), we get a palindrome (14212222221241).

The spelling of 12100211021120 in words is "twelve trillion, one hundred billion, two hundred eleven million, twenty-one thousand, one hundred twenty".