12223311021023 has 4 divisors (see below), whose sum is σ = 12223318042608. Its totient is φ = 12223303999440.

The previous prime is 12223311021017. The next prime is 12223311021091. The reversal of 12223311021023 is 32012011332221.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12223311021023 - 2¹⁰ = 12223311019999 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12223311021023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223311026023) 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, 1275515 + ... + 5106227.

It is an arithmetic number, because the mean of its divisors is an integer number (3055829510652).

Almost surely, 2^{12223311021023} is an apocalyptic number.

12223311021023 is a deficient number, since it is larger than the sum of its proper divisors (7021585).

12223311021023 is an equidigital number, since it uses as much as digits as its factorization.

12223311021023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7021584.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12223311021023 its reverse (32012011332221), we get a palindrome (44235322353244).

The spelling of 12223311021023 in words is "twelve trillion, two hundred twenty-three billion, three hundred eleven million, twenty-one thousand, twenty-three".