12226663522 has 4 divisors (see below), whose sum is σ = 18339995286. Its totient is φ = 6113331760.

The previous prime is 12226663499. The next prime is 12226663529. The reversal of 12226663522 is 22536662221.

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

It can be written as a sum of positive squares in only one way, i.e., 7148533401 + 5078130121 = 84549^2 + 71261^2 .

It is a super-3 number, since 3×12226663522³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12226663529) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3056665879 + ... + 3056665882.

Almost surely, 2^12226663522 is an apocalyptic number.

12226663522 is a deficient number, since it is larger than the sum of its proper divisors (6113331764).

12226663522 is an equidigital number, since it uses as much as digits as its factorization.

12226663522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6113331763.

The product of its digits is 103680, while the sum is 37.

The spelling of 12226663522 in words is "twelve billion, two hundred twenty-six million, six hundred sixty-three thousand, five hundred twenty-two".