12221332023 has 4 divisors (see below), whose sum is σ = 16295109368. Its totient is φ = 8147554680.

The previous prime is 12221332021. The next prime is 12221332031. The reversal of 12221332023 is 32023312221.

It is a happy number.

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

It is not a de Polignac number, because 12221332023 - 2¹ = 12221332021 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 (12221332021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036888668 + ... + 2036888673.

It is an arithmetic number, because the mean of its divisors is an integer number (4073777342).

Almost surely, 2^12221332023 is an apocalyptic number.

12221332023 is a deficient number, since it is larger than the sum of its proper divisors (4073777345).

12221332023 is an equidigital number, since it uses as much as digits as its factorization.

12221332023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4073777344.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 12221332023 its reverse (32023312221), we get a palindrome (44244644244).

The spelling of 12221332023 in words is "twelve billion, two hundred twenty-one million, three hundred thirty-two thousand, twenty-three".