12205226564 has 24 divisors (see below), whose sum is σ = 21456102360. Its totient is φ = 6074966016.

The previous prime is 12205226557. The next prime is 12205226567. The reversal of 12205226564 is 46562250221.

It can be written as a sum of positive squares in 4 ways, for example, as 1295424064 + 10909802500 = 35992^2 + 104450^2 .

It is not an unprimeable number, because it can be changed into a prime (12205226567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 968834 + ... + 981350.

It is an arithmetic number, because the mean of its divisors is an integer number (894004265).

Almost surely, 2^12205226564 is an apocalyptic number.

It is an amenable number.

12205226564 is a deficient number, since it is larger than the sum of its proper divisors (9250875796).

12205226564 is a wasteful number, since it uses less digits than its factorization.

12205226564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13607 (or 13605 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 12205226564 its reverse (46562250221), we get a palindrome (58767476785).

The spelling of 12205226564 in words is "twelve billion, two hundred five million, two hundred twenty-six thousand, five hundred sixty-four".