12221002220323 has 16 divisors (see below), whose sum is σ = 13637621240320. Its totient is φ = 10879102319904.

The previous prime is 12221002220293. The next prime is 12221002220369. The reversal of 12221002220323 is 32302220012221.

It is not a de Polignac number, because 12221002220323 - 2¹⁷ = 12221002089251 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221002220294 and 12221002220303.

It is not an unprimeable number, because it can be changed into a prime (12221002229323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 138324561 + ... + 138412882.

It is an arithmetic number, because the mean of its divisors is an integer number (852351327520).

Almost surely, 2^{12221002220323} is an apocalyptic number.

12221002220323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12221002220323 is a deficient number, since it is larger than the sum of its proper divisors (1416619019997).

12221002220323 is a wasteful number, since it uses less digits than its factorization.

12221002220323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276737578.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 12221002220323 its reverse (32302220012221), we get a palindrome (44523222232544).

The spelling of 12221002220323 in words is "twelve trillion, two hundred twenty-one billion, two million, two hundred twenty thousand, three hundred twenty-three".