12020120111100 has 72 divisors (see below), whose sum is σ = 34783261228800. Its totient is φ = 3204900198080.

The previous prime is 12020120111089. The next prime is 12020120111177. The reversal of 12020120111100 is 111102102021.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 834132 + ... + 4973531.

It is an arithmetic number, because the mean of its divisors is an integer number (483100850400).

Almost surely, 2^{12020120111100} is an apocalyptic number.

12020120111100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020120111100 is an abundant number, since it is smaller than the sum of its proper divisors (22763141117700).

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

12020120111100 is a wasteful number, since it uses less digits than its factorization.

12020120111100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5814579 (or 5814572 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 12020120111100 its reverse (111102102021), we get a palindrome (12131222213121).

The spelling of 12020120111100 in words is "twelve trillion, twenty billion, one hundred twenty million, one hundred eleven thousand, one hundred".