1212211200133 has 2 divisors, whose sum is σ = 1212211200134. Its totient is φ = 1212211200132.

The previous prime is 1212211200127. The next prime is 1212211200217. The reversal of 1212211200133 is 3310021122121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1020548489284 + 191662710849 = 1010222^2 + 437793^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212211200133 - 2⁹ = 1212211199621 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1212211200133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1212211200103) 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 as a sum of consecutive naturals, namely, 606105600066 + 606105600067.

It is an arithmetic number, because the mean of its divisors is an integer number (606105600067).

Almost surely, 2^{1212211200133} is an apocalyptic number.

It is an amenable number.

1212211200133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1212211200133 is an equidigital number, since it uses as much as digits as its factorization.

1212211200133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 1212211200133 its reverse (3310021122121), we get a palindrome (4522232322254).

The spelling of 1212211200133 in words is "one trillion, two hundred twelve billion, two hundred eleven million, two hundred thousand, one hundred thirty-three".