1230202203221 has 2 divisors, whose sum is σ = 1230202203222. Its totient is φ = 1230202203220.

The previous prime is 1230202203187. The next prime is 1230202203227. The reversal of 1230202203221 is 1223022020321.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 829210572100 + 400991631121 = 910610^2 + 633239^2 .

It is a cyclic number.

It is not a de Polignac number, because 1230202203221 - 2⁶ = 1230202203157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1230202203193 and 1230202203202.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1230202203227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 615101101610 + 615101101611.

It is an arithmetic number, because the mean of its divisors is an integer number (615101101611).

Almost surely, 2^{1230202203221} is an apocalyptic number.

It is an amenable number.

1230202203221 is a deficient number, since it is larger than the sum of its proper divisors (1).

1230202203221 is an equidigital number, since it uses as much as digits as its factorization.

1230202203221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 1230202203221 its reverse (1223022020321), we get a palindrome (2453224223542).

The spelling of 1230202203221 in words is "one trillion, two hundred thirty billion, two hundred two million, two hundred three thousand, two hundred twenty-one".