1212033212311 has 4 divisors (see below), whose sum is σ = 1212257959632. Its totient is φ = 1211808464992.

The previous prime is 1212033212251. The next prime is 1212033212333. The reversal of 1212033212311 is 1132123302121.

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

It is a cyclic number.

It is not a de Polignac number, because 1212033212311 - 2⁹ = 1212033211799 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 (1212033212711) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112365571 + ... + 112376356.

It is an arithmetic number, because the mean of its divisors is an integer number (303064489908).

Almost surely, 2^{1212033212311} is an apocalyptic number.

1212033212311 is a deficient number, since it is larger than the sum of its proper divisors (224747321).

1212033212311 is an equidigital number, since it uses as much as digits as its factorization.

1212033212311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 224747320.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 1212033212311 its reverse (1132123302121), we get a palindrome (2344156514432).

The spelling of 1212033212311 in words is "one trillion, two hundred twelve billion, thirty-three million, two hundred twelve thousand, three hundred eleven".