2100202302221 has 2 divisors, whose sum is σ = 2100202302222. Its totient is φ = 2100202302220.

The previous prime is 2100202302203. The next prime is 2100202302227. The reversal of 2100202302221 is 1222032020012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2099354677225 + 847624996 = 1448915^2 + 29114^2 .

It is a cyclic number.

It is not a de Polignac number, because 2100202302221 - 2¹⁸ = 2100202040077 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2100202302221.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2100202302227) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050101151110 + 1050101151111.

It is an arithmetic number, because the mean of its divisors is an integer number (1050101151111).

Almost surely, 2^{2100202302221} is an apocalyptic number.

It is an amenable number.

2100202302221 is a deficient number, since it is larger than the sum of its proper divisors (1).

2100202302221 is an equidigital number, since it uses as much as digits as its factorization.

2100202302221 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 2100202302221 its reverse (1222032020012), we get a palindrome (3322234322233).

The spelling of 2100202302221 in words is "two trillion, one hundred billion, two hundred two million, three hundred two thousand, two hundred twenty-one".