12011212112233 has 4 divisors (see below), whose sum is σ = 12037154255488. Its totient is φ = 11985269968980.

The previous prime is 12011212112227. The next prime is 12011212112239. The reversal of 12011212112233 is 33221121211021.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (12011212112227) and next prime (12011212112239).

It is a cyclic number.

It is not a de Polignac number, because 12011212112233 - 2³³ = 12002622177641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011212112239) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12971070933 + ... + 12971071858.

It is an arithmetic number, because the mean of its divisors is an integer number (3009288563872).

Almost surely, 2^{12011212112233} is an apocalyptic number.

It is an amenable number.

12011212112233 is a deficient number, since it is larger than the sum of its proper divisors (25942143255).

12011212112233 is an equidigital number, since it uses as much as digits as its factorization.

12011212112233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25942143254.

The product of its (nonzero) digits is 288, while the sum is 22.

Adding to 12011212112233 its reverse (33221121211021), we get a palindrome (45232333323254).

The spelling of 12011212112233 in words is "twelve trillion, eleven billion, two hundred twelve million, one hundred twelve thousand, two hundred thirty-three".