12021122112120 has 192 divisors, whose sum is σ = 44863518211200. Its totient is φ = 2760831855360.

The previous prime is 12021122112113. The next prime is 12021122112161. The reversal of 12021122112120 is 2121122112021.

12021122112120 is a `hidden beast` number, since 1 + 20 + 211 + 221 + 1 + 212 + 0 = 666.

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

It is a junction number, because it is equal to n+sod(n) for n = 12021122112093 and 12021122112102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 79809942 + ... + 79960421.

It is an arithmetic number, because the mean of its divisors is an integer number (233664157350).

Almost surely, 2^{12021122112120} is an apocalyptic number.

12021122112120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021122112120 is an abundant number, since it is smaller than the sum of its proper divisors (32842396099080).

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

12021122112120 is a wasteful number, since it uses less digits than its factorization.

12021122112120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159770410 (or 159770403 counting only the distinct ones).

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

Adding to 12021122112120 its reverse (2121122112021), we get a palindrome (14142244224141).

Subtracting from 12021122112120 its reverse (2121122112021), we obtain a palindrome (9900000000099).

The spelling of 12021122112120 in words is "twelve trillion, twenty-one billion, one hundred twenty-two million, one hundred twelve thousand, one hundred twenty".