12111020021120 has 32 divisors (see below), whose sum is σ = 28952907239520. Its totient is φ = 4844408008192.

The previous prime is 12111020021119. The next prime is 12111020021147. The reversal of 12111020021120 is 2112002011121.

It is a tau number, because it is divible by the number of its divisors (32).

It is a junction number, because it is equal to n+sod(n) for n = 12111020021095 and 12111020021104.

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, 9461733752 + ... + 9461735031.

It is an arithmetic number, because the mean of its divisors is an integer number (904778351235).

Almost surely, 2^{12111020021120} is an apocalyptic number.

12111020021120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12111020021120 is an abundant number, since it is smaller than the sum of its proper divisors (16841887218400).

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

12111020021120 is an equidigital number, since it uses as much as digits as its factorization.

12111020021120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18923468802 (or 18923468790 counting only the distinct ones).

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

Adding to 12111020021120 its reverse (2112002011121), we get a palindrome (14223022032241).

The spelling of 12111020021120 in words is "twelve trillion, one hundred eleven billion, twenty million, twenty-one thousand, one hundred twenty".