12221123320302 has 64 divisors (see below), whose sum is σ = 27722704880640. Its totient is φ = 3560517648000.

The previous prime is 12221123320261. The next prime is 12221123320319. The reversal of 12221123320302 is 20302332112221.

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, 542427 + ... + 4973577.

It is an arithmetic number, because the mean of its divisors is an integer number (433167263760).

Almost surely, 2^{12221123320302} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12221123320302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13861352440320).

12221123320302 is an abundant number, since it is smaller than the sum of its proper divisors (15501581560338).

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

12221123320302 is a wasteful number, since it uses less digits than its factorization.

12221123320302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4433049.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 12221123320302 its reverse (20302332112221), we get a palindrome (32523455432523).

The spelling of 12221123320302 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty-three million, three hundred twenty thousand, three hundred two".