12222233245 has 4 divisors (see below), whose sum is σ = 14666679900. Its totient is φ = 9777786592.

The previous prime is 12222233203. The next prime is 12222233267. The reversal of 12222233245 is 54233222221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 54233222221 = 643 ⋅84344047.

It can be written as a sum of positive squares in 2 ways, for example, as 2353996324 + 9868236921 = 48518^2 + 99339^2 .

It is a cyclic number.

It is not a de Polignac number, because 12222233245 - 2⁷ = 12222233117 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222223320 + ... + 1222223329.

It is an arithmetic number, because the mean of its divisors is an integer number (3666669975).

Almost surely, 2^12222233245 is an apocalyptic number.

It is an amenable number.

12222233245 is a deficient number, since it is larger than the sum of its proper divisors (2444446655).

12222233245 is an equidigital number, since it uses as much as digits as its factorization.

12222233245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2444446654.

The product of its digits is 11520, while the sum is 28.

Adding to 12222233245 its reverse (54233222221), we get a palindrome (66455455466).

The spelling of 12222233245 in words is "twelve billion, two hundred twenty-two million, two hundred thirty-three thousand, two hundred forty-five".