12120220211112 has 64 divisors (see below), whose sum is σ = 36257069016000. Its totient is φ = 3729298525632.

The previous prime is 12120220211111. The next prime is 12120220211117. The reversal of 12120220211112 is 21111202202121.

12120220211112 is a `hidden beast` number, since 1 + 2 + 120 + 220 + 211 + 112 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (12120220211111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2158156062 + ... + 2158161677.

It is an arithmetic number, because the mean of its divisors is an integer number (566516703375).

Almost surely, 2^{12120220211112} is an apocalyptic number.

12120220211112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12120220211112 is an abundant number, since it is smaller than the sum of its proper divisors (24136848804888).

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

12120220211112 is a wasteful number, since it uses less digits than its factorization.

12120220211112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4316317767 (or 4316317757 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

Adding to 12120220211112 its reverse (21111202202121), we get a palindrome (33231422413233).

The spelling of 12120220211112 in words is "twelve trillion, one hundred twenty billion, two hundred twenty million, two hundred eleven thousand, one hundred twelve".