12021211032120 has 96 divisors (see below), whose sum is σ = 41125195659600. Its totient is φ = 3036937522176.

The previous prime is 12021211032119. The next prime is 12021211032163. The reversal of 12021211032120 is 2123011212021.

12021211032120 is a `hidden beast` number, since 1 + 2 + 0 + 212 + 110 + 321 + 20 = 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 = 12021211032093 and 12021211032102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 878736657 + ... + 878750336.

Almost surely, 2^{12021211032120} is an apocalyptic number.

12021211032120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021211032120 is an abundant number, since it is smaller than the sum of its proper divisors (29103984627480).

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

12021211032120 is a wasteful number, since it uses less digits than its factorization.

12021211032120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757487029 (or 1757487022 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 12021211032120 its reverse (2123011212021), we get a palindrome (14144222244141).

The spelling of 12021211032120 in words is "twelve trillion, twenty-one billion, two hundred eleven million, thirty-two thousand, one hundred twenty".