12020321202220 has 48 divisors (see below), whose sum is σ = 25841233313280. Its totient is φ = 4694217022656.

The previous prime is 12020321202161. The next prime is 12020321202229. The reversal of 12020321202220 is 2220212302021.

It is a super-2 number, since 2×12020321202220² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12020321202229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1186740 + ... + 5044699.

It is an arithmetic number, because the mean of its divisors is an integer number (538359027360).

Almost surely, 2^{12020321202220} is an apocalyptic number.

12020321202220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12020321202220 is an abundant number, since it is smaller than the sum of its proper divisors (13820912111060).

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

12020321202220 is a wasteful number, since it uses less digits than its factorization.

12020321202220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6233734 (or 6233732 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12020321202220 its reverse (2220212302021), we get a palindrome (14240533504241).

The spelling of 12020321202220 in words is "twelve trillion, twenty billion, three hundred twenty-one million, two hundred two thousand, two hundred twenty".