12221120010023 has 4 divisors (see below), whose sum is σ = 12403524786360. Its totient is φ = 12038715233688.

The previous prime is 12221120010019. The next prime is 12221120010059. The reversal of 12221120010023 is 32001002112221.

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 12221120010023 - 2² = 12221120010019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12221120009983 and 12221120010010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12221120010013) 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 3 ways as a sum of consecutive naturals, for example, 91202388068 + ... + 91202388201.

It is an arithmetic number, because the mean of its divisors is an integer number (3100881196590).

Almost surely, 2^{12221120010023} is an apocalyptic number.

12221120010023 is a deficient number, since it is larger than the sum of its proper divisors (182404776337).

12221120010023 is an equidigital number, since it uses as much as digits as its factorization.

12221120010023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182404776336.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12221120010023 its reverse (32001002112221), we get a palindrome (44222122122244).

The spelling of 12221120010023 in words is "twelve trillion, two hundred twenty-one billion, one hundred twenty million, ten thousand, twenty-three".