12222465524 has 12 divisors (see below), whose sum is σ = 21391146084. Its totient is φ = 6110709504.

The previous prime is 12222465517. The next prime is 12222465527. The reversal of 12222465524 is 42556422221.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 7075837924 + 5146627600 = 84118^2 + 71740^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12222465527) 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, 75677 + ... + 173700.

It is an arithmetic number, because the mean of its divisors is an integer number (1782595507).

Almost surely, 2^12222465524 is an apocalyptic number.

It is an amenable number.

12222465524 is a deficient number, since it is larger than the sum of its proper divisors (9168680560).

12222465524 is a wasteful number, since it uses less digits than its factorization.

12222465524 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 261634 (or 261632 counting only the distinct ones).

The product of its digits is 76800, while the sum is 35.

Adding to 12222465524 its reverse (42556422221), we get a palindrome (54778887745).

The spelling of 12222465524 in words is "twelve billion, two hundred twenty-two million, four hundred sixty-five thousand, five hundred twenty-four".