12221344410 has 64 divisors (see below), whose sum is σ = 32314598784. Its totient is φ = 2933408000.

The previous prime is 12221344397. The next prime is 12221344417. The reversal of 12221344410 is 1444312221.

It is a super-2 number, since 2×12221344410² (a number of 21 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (12221344417) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 150009 + ... + 216668.

It is an arithmetic number, because the mean of its divisors is an integer number (504915606).

Almost surely, 2^12221344410 is an apocalyptic number.

12221344410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12221344410 is an abundant number, since it is smaller than the sum of its proper divisors (20093254374).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12221344410 is a wasteful number, since it uses less digits than its factorization.

12221344410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 366799.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 12221344410 its reverse (1444312221), we get a palindrome (13665656631).

The spelling of 12221344410 in words is "twelve billion, two hundred twenty-one million, three hundred forty-four thousand, four hundred ten".