12213003203021 has 2 divisors, whose sum is σ = 12213003203022. Its totient is φ = 12213003203020.

The previous prime is 12213003202979. The next prime is 12213003203101. The reversal of 12213003203021 is 12030230031221.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10199470582921 + 2013532620100 = 3193661^2 + 1418990^2 .

It is a cyclic number.

It is not a de Polignac number, because 12213003203021 - 2³⁰ = 12211929461197 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12213003202984 and 12213003203002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12213003203221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6106501601510 + 6106501601511.

It is an arithmetic number, because the mean of its divisors is an integer number (6106501601511).

Almost surely, 2^{12213003203021} is an apocalyptic number.

It is an amenable number.

12213003203021 is a deficient number, since it is larger than the sum of its proper divisors (1).

12213003203021 is an equidigital number, since it uses as much as digits as its factorization.

12213003203021 is an odious number, because the sum of its binary digits is odd.

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

Adding to 12213003203021 its reverse (12030230031221), we get a palindrome (24243233234242).

The spelling of 12213003203021 in words is "twelve trillion, two hundred thirteen billion, three million, two hundred three thousand, twenty-one".