12212042233 has 4 divisors (see below), whose sum is σ = 12212625780. Its totient is φ = 12211458688.

The previous prime is 12212042207. The next prime is 12212042239. The reversal of 12212042233 is 33224021221.

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 3351020544 + 8861021689 = 57888^2 + 94133^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212042233 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12212042239) 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, 259168 + ... + 302641.

It is an arithmetic number, because the mean of its divisors is an integer number (3053156445).

Almost surely, 2^12212042233 is an apocalyptic number.

It is an amenable number.

12212042233 is a deficient number, since it is larger than the sum of its proper divisors (583547).

12212042233 is an equidigital number, since it uses as much as digits as its factorization.

12212042233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 583546.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12212042233 its reverse (33224021221), we get a palindrome (45436063454).

The spelling of 12212042233 in words is "twelve billion, two hundred twelve million, forty-two thousand, two hundred thirty-three".