12220221311323 has 4 divisors (see below), whose sum is σ = 12220228508560. Its totient is φ = 12220214114088.

The previous prime is 12220221311303. The next prime is 12220221311371. The reversal of 12220221311323 is 32311312202221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12220221311323 - 2⁹ = 12220221310811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12220221311303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 517858 + ... + 4970776.

It is an arithmetic number, because the mean of its divisors is an integer number (3055057127140).

Almost surely, 2^{12220221311323} is an apocalyptic number.

12220221311323 is a deficient number, since it is larger than the sum of its proper divisors (7197237).

12220221311323 is an equidigital number, since it uses as much as digits as its factorization.

12220221311323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7197236.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12220221311323 its reverse (32311312202221), we get a palindrome (44531533513544).

The spelling of 12220221311323 in words is "twelve trillion, two hundred twenty billion, two hundred twenty-one million, three hundred eleven thousand, three hundred twenty-three".