12221002230023 has 4 divisors (see below), whose sum is σ = 12939884714160. Its totient is φ = 11502119745888.

The previous prime is 12221002230011. The next prime is 12221002230049. The reversal of 12221002230023 is 32003220012221.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221002230023 - 2⁶ = 12221002229959 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221002229977 and 12221002230004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221002230223) 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, 359441242043 + ... + 359441242076.

It is an arithmetic number, because the mean of its divisors is an integer number (3234971178540).

Almost surely, 2^{12221002230023} is an apocalyptic number.

12221002230023 is a deficient number, since it is larger than the sum of its proper divisors (718882484137).

12221002230023 is an equidigital number, since it uses as much as digits as its factorization.

12221002230023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 718882484136.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12221002230023 its reverse (32003220012221), we get a palindrome (44224222242244).

The spelling of 12221002230023 in words is "twelve trillion, two hundred twenty-one billion, two million, two hundred thirty thousand, twenty-three".