12221310202320 has 160 divisors (see below), whose sum is σ = 38537186140800. Its totient is φ = 3203222077440.

The previous prime is 12221310202313. The next prime is 12221310202379. The reversal of 12221310202320 is 2320201312221.

It is a super-2 number, since 2×12221310202320² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6373560 + ... + 8066280.

It is an arithmetic number, because the mean of its divisors is an integer number (240857413380).

Almost surely, 2^{12221310202320} is an apocalyptic number.

12221310202320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221310202320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (19268593070400).

12221310202320 is an abundant number, since it is smaller than the sum of its proper divisors (26315875938480).

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

12221310202320 is a wasteful number, since it uses less digits than its factorization.

12221310202320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693253 (or 1693247 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 12221310202320 its reverse (2320201312221), we get a palindrome (14541511514541).

The spelling of 12221310202320 in words is "twelve trillion, two hundred twenty-one billion, three hundred ten million, two hundred two thousand, three hundred twenty".