1212111130133 has 4 divisors (see below), whose sum is σ = 1212395600748. Its totient is φ = 1211826659520.

The previous prime is 1212111130123. The next prime is 1212111130159. The reversal of 1212111130133 is 3310311112121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 682603135204 + 529507994929 = 826198^2 + 727673^2 .

It is a cyclic number.

It is not a de Polignac number, because 1212111130133 - 2⁴ = 1212111130117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212111130123) 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 in 3 ways as a sum of consecutive naturals, for example, 142228916 + ... + 142237437.

It is an arithmetic number, because the mean of its divisors is an integer number (303098900187).

Almost surely, 2^{1212111130133} is an apocalyptic number.

It is an amenable number.

1212111130133 is a deficient number, since it is larger than the sum of its proper divisors (284470615).

1212111130133 is an equidigital number, since it uses as much as digits as its factorization.

1212111130133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 284470614.

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 1212111130133 its reverse (3310311112121), we get a palindrome (4522422242254).

The spelling of 1212111130133 in words is "one trillion, two hundred twelve billion, one hundred eleven million, one hundred thirty thousand, one hundred thirty-three".