12221002323223 has 16 divisors (see below), whose sum is σ = 12508402636800. Its totient is φ = 11936489268960.

The previous prime is 12221002323209. The next prime is 12221002323347. The reversal of 12221002323223 is 32232320012221.

It is not a de Polignac number, because 12221002323223 - 2¹⁷ = 12221002192151 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221002323203) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5784478 + ... + 7609348.

It is an arithmetic number, because the mean of its divisors is an integer number (781775164800).

Almost surely, 2^{12221002323223} is an apocalyptic number.

12221002323223 is a deficient number, since it is larger than the sum of its proper divisors (287400313577).

12221002323223 is a wasteful number, since it uses less digits than its factorization.

12221002323223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1825662.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12221002323223 its reverse (32232320012221), we get a palindrome (44453322335444).

The spelling of 12221002323223 in words is "twelve trillion, two hundred twenty-one billion, two million, three hundred twenty-three thousand, two hundred twenty-three".