1212200200205 has 8 divisors (see below), whose sum is σ = 1454861719800. Its totient is φ = 969612507136.

The previous prime is 1212200200171. The next prime is 1212200200207. The reversal of 1212200200205 is 5020020022121.

It can be written as a sum of positive squares in 4 ways, for example, as 516222132196 + 695978068009 = 718486^2 + 834253^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1212200200205 - 2¹⁰ = 1212200199181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212200200207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18420500 + ... + 18486189.

It is an arithmetic number, because the mean of its divisors is an integer number (181857714975).

Almost surely, 2^{1212200200205} is an apocalyptic number.

It is an amenable number.

1212200200205 is a deficient number, since it is larger than the sum of its proper divisors (242661519595).

1212200200205 is an equidigital number, since it uses as much as digits as its factorization.

1212200200205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36913263.

The product of its (nonzero) digits is 160, while the sum is 17.

Adding to 1212200200205 its reverse (5020020022121), we get a palindrome (6232220222326).

The spelling of 1212200200205 in words is "one trillion, two hundred twelve billion, two hundred million, two hundred thousand, two hundred five".