200212020022121 has 2 divisors, whose sum is σ = 200212020022122. Its totient is φ = 200212020022120.

The previous prime is 200212020022117. The next prime is 200212020022163. The reversal of 200212020022121 is 121220020212002.

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., 163441803838096 + 36770216184025 = 12784436^2 + 6063845^2 .

It is a cyclic number.

It is not a de Polignac number, because 200212020022121 - 2² = 200212020022117 is a prime.

It is a super-2 number, since 2×200212020022121² (a number of 29 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 200212020022121.

It is not a weakly prime, because it can be changed into another prime (200212020022621) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100106010011060 + 100106010011061.

It is an arithmetic number, because the mean of its divisors is an integer number (100106010011061).

Almost surely, 2^{200212020022121} is an apocalyptic number.

It is an amenable number.

200212020022121 is a deficient number, since it is larger than the sum of its proper divisors (1).

200212020022121 is an equidigital number, since it uses as much as digits as its factorization.

200212020022121 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 200212020022121 its reverse (121220020212002), we get a palindrome (321432040234123).

The spelling of 200212020022121 in words is "two hundred trillion, two hundred twelve billion, twenty million, twenty-two thousand, one hundred twenty-one".