12012202221023 has 4 divisors (see below), whose sum is σ = 12022072560960. Its totient is φ = 12002331881088.

The previous prime is 12012202221007. The next prime is 12012202221031. The reversal of 12012202221023 is 32012220221021.

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 12012202221023 - 2⁴ = 12012202221007 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12012202220986 and 12012202221004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012202221053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4935168143 + ... + 4935170576.

It is an arithmetic number, because the mean of its divisors is an integer number (3005518140240).

Almost surely, 2^{12012202221023} is an apocalyptic number.

12012202221023 is a deficient number, since it is larger than the sum of its proper divisors (9870339937).

12012202221023 is an equidigital number, since it uses as much as digits as its factorization.

12012202221023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9870339936.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12012202221023 its reverse (32012220221021), we get a palindrome (44024422442044).

It can be divided in two parts, 1201220 and 2221023, that added together give a palindrome (3422243).

The spelling of 12012202221023 in words is "twelve trillion, twelve billion, two hundred two million, two hundred twenty-one thousand, twenty-three".