12021300022220 has 72 divisors (see below), whose sum is σ = 25643264813712. Its totient is φ = 4733764846720.

The previous prime is 12021300022189. The next prime is 12021300022223. The reversal of 12021300022220 is 2222000312021.

It is not an unprimeable number, because it can be changed into a prime (12021300022223) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 68167079 + ... + 68343201.

It is an arithmetic number, because the mean of its divisors is an integer number (356156455746).

Almost surely, 2^{12021300022220} is an apocalyptic number.

12021300022220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021300022220 is an abundant number, since it is smaller than the sum of its proper divisors (13621964791492).

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

12021300022220 is a wasteful number, since it uses less digits than its factorization.

12021300022220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176951 (or 176878 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 12021300022220 its reverse (2222000312021), we get a palindrome (14243300334241).

The spelling of 12021300022220 in words is "twelve trillion, twenty-one billion, three hundred million, twenty-two thousand, two hundred twenty".