12020331030221 has 4 divisors (see below), whose sum is σ = 12023089889532. Its totient is φ = 12017572170912.

The previous prime is 12020331030203. The next prime is 12020331030223. The reversal of 12020331030221 is 12203013302021.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 10254052818025 + 1766278212196 = 3202195^2 + 1329014^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020331030221 - 2¹⁴ = 12020331013837 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020331030193 and 12020331030202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020331030223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1379423120 + ... + 1379431833.

It is an arithmetic number, because the mean of its divisors is an integer number (3005772472383).

Almost surely, 2^{12020331030221} is an apocalyptic number.

It is an amenable number.

12020331030221 is a deficient number, since it is larger than the sum of its proper divisors (2758859311).

12020331030221 is an equidigital number, since it uses as much as digits as its factorization.

12020331030221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758859310.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12020331030221 its reverse (12203013302021), we get a palindrome (24223344332242).

The spelling of 12020331030221 in words is "twelve trillion, twenty billion, three hundred thirty-one million, thirty thousand, two hundred twenty-one".