1212212200201 has 2 divisors, whose sum is σ = 1212212200202. Its totient is φ = 1212212200200.

The previous prime is 1212212200193. The next prime is 1212212200217. The reversal of 1212212200201 is 1020022122121.

It is a happy number.

It is an a-pointer prime, because the next prime (1212212200217) can be obtained adding 1212212200201 to its sum of digits (16).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 962951652601 + 249260547600 = 981301^2 + 499260^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212212200201 - 2³ = 1212212200193 is a prime.

It is a super-2 number, since 2×1212212200201² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1212212200291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 606106100100 + 606106100101.

It is an arithmetic number, because the mean of its divisors is an integer number (606106100101).

Almost surely, 2^{1212212200201} is an apocalyptic number.

It is an amenable number.

1212212200201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212212200201 is an equidigital number, since it uses as much as digits as its factorization.

1212212200201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1212212200201 its reverse (1020022122121), we get a palindrome (2232234322322).

The spelling of 1212212200201 in words is "one trillion, two hundred twelve billion, two hundred twelve million, two hundred thousand, two hundred one".