12272442131522 has 4 divisors (see below), whose sum is σ = 18408663197286. Its totient is φ = 6136221065760.

The previous prime is 12272442131513. The next prime is 12272442131527. The reversal of 12272442131522 is 22513124427221.

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., 6995861010961 + 5276581120561 = 2644969^2 + 2297081^2 .

It is a super-2 number, since 2×12272442131522² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (12272442131527) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3068110532879 + ... + 3068110532882.

Almost surely, 2^{12272442131522} is an apocalyptic number.

12272442131522 is a deficient number, since it is larger than the sum of its proper divisors (6136221065764).

12272442131522 is an equidigital number, since it uses as much as digits as its factorization.

12272442131522 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6136221065763.

The product of its digits is 107520, while the sum is 38.

Adding to 12272442131522 its reverse (22513124427221), we get a palindrome (34785566558743).

The spelling of 12272442131522 in words is "twelve trillion, two hundred seventy-two billion, four hundred forty-two million, one hundred thirty-one thousand, five hundred twenty-two".