12221514525 has 24 divisors (see below), whose sum is σ = 22043169504. Its totient is φ = 5925582400.

The previous prime is 12221514521. The next prime is 12221514527. The reversal of 12221514525 is 52541512221.

12221514525 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12221514525 - 2² = 12221514521 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12221514492 and 12221514501.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221514521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7406154 + ... + 7407803.

It is an arithmetic number, because the mean of its divisors is an integer number (918465396).

Almost surely, 2^12221514525 is an apocalyptic number.

12221514525 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

12221514525 is a deficient number, since it is larger than the sum of its proper divisors (9821654979).

12221514525 is a wasteful number, since it uses less digits than its factorization.

12221514525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14813981 (or 14813976 counting only the distinct ones).

The product of its digits is 8000, while the sum is 30.

The spelling of 12221514525 in words is "twelve billion, two hundred twenty-one million, five hundred fourteen thousand, five hundred twenty-five".