12021112130220 has 72 divisors (see below), whose sum is σ = 38049433190496. Its totient is φ = 3066254687232.

The previous prime is 12021112130179. The next prime is 12021112130233. The reversal of 12021112130220 is 2203121112021.

12021112130220 is a `hidden beast` number, since 1 + 20 + 211 + 1 + 213 + 0 + 220 = 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 = 12021112130193 and 12021112130202.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1451820997 + ... + 1451829276.

It is an arithmetic number, because the mean of its divisors is an integer number (528464349868).

Almost surely, 2^{12021112130220} is an apocalyptic number.

12021112130220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021112130220 is an abundant number, since it is smaller than the sum of its proper divisors (26028321060276).

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

12021112130220 is a wasteful number, since it uses less digits than its factorization.

12021112130220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2903650311 (or 2903650306 counting only the distinct ones).

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

Adding to 12021112130220 its reverse (2203121112021), we get a palindrome (14224233242241).

The spelling of 12021112130220 in words is "twelve trillion, twenty-one billion, one hundred twelve million, one hundred thirty thousand, two hundred twenty".