200212200121 has 2 divisors, whose sum is σ = 200212200122. Its totient is φ = 200212200120.

The previous prime is 200212200059. The next prime is 200212200143. The reversal of 200212200121 is 121002212002.

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., 164316729600 + 35895470521 = 405360^2 + 189461^2 .

It is a cyclic number.

It is not a de Polignac number, because 200212200121 - 2²⁷ = 200077982393 is a prime.

It is not a weakly prime, because it can be changed into another prime (200212200191) 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, 100106100060 + 100106100061.

It is an arithmetic number, because the mean of its divisors is an integer number (100106100061).

Almost surely, 2^200212200121 is an apocalyptic number.

It is an amenable number.

200212200121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200212200121 is an equidigital number, since it uses as much as digits as its factorization.

200212200121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 200212200121 its reverse (121002212002), we get a palindrome (321214412123).

The spelling of 200212200121 in words is "two hundred billion, two hundred twelve million, two hundred thousand, one hundred twenty-one".