12012120122112 has 144 divisors (see below), whose sum is σ = 38751221093760. Its totient is φ = 3640036377600.

The previous prime is 12012120122099. The next prime is 12012120122147. The reversal of 12012120122112 is 21122102121021.

12012120122112 is a `hidden beast` number, since 120 + 121 + 201 + 221 + 1 + 2 = 666.

It is a tau number, because it is divible by the number of its divisors (144).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78917814 + ... + 79069877.

It is an arithmetic number, because the mean of its divisors is an integer number (269105702040).

Almost surely, 2^{12012120122112} is an apocalyptic number.

12012120122112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12012120122112 is an abundant number, since it is smaller than the sum of its proper divisors (26739100971648).

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

12012120122112 is a wasteful number, since it uses less digits than its factorization.

12012120122112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157987727 (or 157987707 counting only the distinct ones).

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

Adding to 12012120122112 its reverse (21122102121021), we get a palindrome (33134222243133).

The spelling of 12012120122112 in words is "twelve trillion, twelve billion, one hundred twenty million, one hundred twenty-two thousand, one hundred twelve".