12021200220 has 24 divisors (see below), whose sum is σ = 33659360784. Its totient is φ = 3205653376.

The previous prime is 12021200207. The next prime is 12021200227. The reversal of 12021200220 is 2200212021.

12021200220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 12021200196 and 12021200205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021200227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100176609 + ... + 100176728.

It is an arithmetic number, because the mean of its divisors is an integer number (1402473366).

Almost surely, 2^12021200220 is an apocalyptic number.

12021200220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12021200220 is an abundant number, since it is smaller than the sum of its proper divisors (21638160564).

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

12021200220 is a wasteful number, since it uses less digits than its factorization.

12021200220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200353349 (or 200353347 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 12021200220 its reverse (2200212021), we get a palindrome (14221412241).

The spelling of 12021200220 in words is "twelve billion, twenty-one million, two hundred thousand, two hundred twenty".