200202220102121 has 2 divisors, whose sum is σ = 200202220102122. Its totient is φ = 200202220102120.

The previous prime is 200202220102069. The next prime is 200202220102207. The reversal of 200202220102121 is 121201022202002.

It is a happy number.

200202220102121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199297058142121 + 905161960000 = 14117261^2 + 951400^2 .

It is a cyclic number.

It is not a de Polignac number, because 200202220102121 - 2¹⁸ = 200202219839977 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 200202220102121.

It is not a weakly prime, because it can be changed into another prime (200202220102921) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100101110051060 + 100101110051061.

It is an arithmetic number, because the mean of its divisors is an integer number (100101110051061).

Almost surely, 2^{200202220102121} is an apocalyptic number.

It is an amenable number.

200202220102121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200202220102121 is an equidigital number, since it uses as much as digits as its factorization.

200202220102121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 128, while the sum is 17.

Adding to 200202220102121 its reverse (121201022202002), we get a palindrome (321403242304123).

The spelling of 200202220102121 in words is "two hundred trillion, two hundred two billion, two hundred twenty million, one hundred two thousand, one hundred twenty-one".