12021022131223 has 4 divisors (see below), whose sum is σ = 13738311007120. Its totient is φ = 10303733255328.

The previous prime is 12021022131211. The next prime is 12021022131227. The reversal of 12021022131223 is 32213122012021.

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 12021022131223 - 2²⁵ = 12020988576791 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12021022131194 and 12021022131203.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021022131227) 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, 858644437938 + ... + 858644437951.

It is an arithmetic number, because the mean of its divisors is an integer number (3434577751780).

Almost surely, 2^{12021022131223} is an apocalyptic number.

12021022131223 is a deficient number, since it is larger than the sum of its proper divisors (1717288875897).

12021022131223 is an equidigital number, since it uses as much as digits as its factorization.

12021022131223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1717288875896.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 12021022131223 its reverse (32213122012021), we get a palindrome (44234144143244).

The spelling of 12021022131223 in words is "twelve trillion, twenty-one billion, twenty-two million, one hundred thirty-one thousand, two hundred twenty-three".