201200200222121 has 2 divisors, whose sum is σ = 201200200222122. Its totient is φ = 201200200222120.

The previous prime is 201200200222103. The next prime is 201200200222181. The reversal of 201200200222121 is 121222002002102.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 172025888466496 + 29174311755625 = 13115864^2 + 5401325^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201200200222121 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 201200200222121.

It is not a weakly prime, because it can be changed into another prime (201200200222181) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100600100111060 + 100600100111061.

It is an arithmetic number, because the mean of its divisors is an integer number (100600100111061).

Almost surely, 2^{201200200222121} is an apocalyptic number.

It is an amenable number.

201200200222121 is a deficient number, since it is larger than the sum of its proper divisors (1).

201200200222121 is an equidigital number, since it uses as much as digits as its factorization.

201200200222121 is an odious number, because the sum of its binary digits is odd.

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

Adding to 201200200222121 its reverse (121222002002102), we get a palindrome (322422202224223).

The spelling of 201200200222121 in words is "two hundred one trillion, two hundred billion, two hundred million, two hundred twenty-two thousand, one hundred twenty-one".