12221003021320 has 64 divisors (see below), whose sum is σ = 27560672936640. Its totient is φ = 4877132601600.

The previous prime is 12221003021299. The next prime is 12221003021333. The reversal of 12221003021320 is 2312030012221.

It is a super-2 number, since 2×12221003021320² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 74609110 + ... + 74772730.

It is an arithmetic number, because the mean of its divisors is an integer number (430635514635).

Almost surely, 2^{12221003021320} is an apocalyptic number.

12221003021320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12221003021320 is an abundant number, since it is smaller than the sum of its proper divisors (15339669915320).

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

12221003021320 is a wasteful number, since it uses less digits than its factorization.

12221003021320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167926 (or 167922 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12221003021320 its reverse (2312030012221), we get a palindrome (14533033033541).

The spelling of 12221003021320 in words is "twelve trillion, two hundred twenty-one billion, three million, twenty-one thousand, three hundred twenty".