12221325308 has 6 divisors (see below), whose sum is σ = 21387319296. Its totient is φ = 6110662652.

The previous prime is 12221325307. The next prime is 12221325343. The reversal of 12221325308 is 80352312221.

It is a super-2 number, since 2×12221325308² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221325307) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1527665660 + ... + 1527665667.

It is an arithmetic number, because the mean of its divisors is an integer number (3564553216).

Almost surely, 2^12221325308 is an apocalyptic number.

It is an amenable number.

12221325308 is a deficient number, since it is larger than the sum of its proper divisors (9165993988).

12221325308 is a wasteful number, since it uses less digits than its factorization.

12221325308 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3055331331 (or 3055331329 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 29.

Adding to 12221325308 its reverse (80352312221), we get a palindrome (92573637529).

The spelling of 12221325308 in words is "twelve billion, two hundred twenty-one million, three hundred twenty-five thousand, three hundred eight".