212021202353 has 2 divisors, whose sum is σ = 212021202354. Its totient is φ = 212021202352.

The previous prime is 212021202299. The next prime is 212021202403. The reversal of 212021202353 is 353202120212.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 156524679424 + 55496522929 = 395632^2 + 235577^2 .

It is a cyclic number.

It is not a de Polignac number, because 212021202353 - 2¹⁴ = 212021185969 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (212021202853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106010601176 + 106010601177.

It is an arithmetic number, because the mean of its divisors is an integer number (106010601177).

Almost surely, 2^212021202353 is an apocalyptic number.

It is an amenable number.

212021202353 is a deficient number, since it is larger than the sum of its proper divisors (1).

212021202353 is an equidigital number, since it uses as much as digits as its factorization.

212021202353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 212021202353 its reverse (353202120212), we get a palindrome (565223322565).

The spelling of 212021202353 in words is "two hundred twelve billion, twenty-one million, two hundred two thousand, three hundred fifty-three".