12221009772233 has 4 divisors (see below), whose sum is σ = 12642423902340. Its totient is φ = 11799595642128.

The previous prime is 12221009772203. The next prime is 12221009772263. The reversal of 12221009772233 is 33227790012221.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (12221009772203) and next prime (12221009772263).

It can be written as a sum of positive squares in 2 ways, for example, as 2121529163209 + 10099480609024 = 1456547^2 + 3177968^2 .

It is a cyclic number.

It is not a de Polignac number, because 12221009772233 - 2³² = 12216714804937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12221009772203) 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, 210707065010 + ... + 210707065067.

It is an arithmetic number, because the mean of its divisors is an integer number (3160605975585).

Almost surely, 2^{12221009772233} is an apocalyptic number.

It is an amenable number.

12221009772233 is a deficient number, since it is larger than the sum of its proper divisors (421414130107).

12221009772233 is an equidigital number, since it uses as much as digits as its factorization.

12221009772233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 421414130106.

The product of its (nonzero) digits is 127008, while the sum is 41.

Adding to 12221009772233 its reverse (33227790012221), we get a palindrome (45448799784454).

The spelling of 12221009772233 in words is "twelve trillion, two hundred twenty-one billion, nine million, seven hundred seventy-two thousand, two hundred thirty-three".