12020212202321 has 2 divisors, whose sum is σ = 12020212202322. Its totient is φ = 12020212202320.

The previous prime is 12020212202311. The next prime is 12020212202363. The reversal of 12020212202321 is 12320221202021.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7292370792721 + 4727841409600 = 2700439^2 + 2174360^2 .

It is a cyclic number.

It is not a de Polignac number, because 12020212202321 - 2²⁶ = 12020145093457 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12020212202293 and 12020212202302.

It is not a weakly prime, because it can be changed into another prime (12020212202311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6010106101160 + 6010106101161.

It is an arithmetic number, because the mean of its divisors is an integer number (6010106101161).

Almost surely, 2^{12020212202321} is an apocalyptic number.

It is an amenable number.

12020212202321 is a deficient number, since it is larger than the sum of its proper divisors (1).

12020212202321 is an equidigital number, since it uses as much as digits as its factorization.

12020212202321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12020212202321 its reverse (12320221202021), we get a palindrome (24340433404342).

The spelling of 12020212202321 in words is "twelve trillion, twenty billion, two hundred twelve million, two hundred two thousand, three hundred twenty-one".