12212202323 has 4 divisors (see below), whose sum is σ = 12219938040. Its totient is φ = 12204466608.

The previous prime is 12212202319. The next prime is 12212202377. The reversal of 12212202323 is 32320221221.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32320221221 = 34871 ⋅926851.

It is a cyclic number.

It is not a de Polignac number, because 12212202323 - 2² = 12212202319 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12212202295 and 12212202304.

It is not an unprimeable number, because it can be changed into a prime (12212207323) 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, 3865490 + ... + 3868647.

It is an arithmetic number, because the mean of its divisors is an integer number (3054984510).

Almost surely, 2^12212202323 is an apocalyptic number.

12212202323 is a deficient number, since it is larger than the sum of its proper divisors (7735717).

12212202323 is an equidigital number, since it uses as much as digits as its factorization.

12212202323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7735716.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12212202323 its reverse (32320221221), we get a palindrome (44532423544).

The spelling of 12212202323 in words is "twelve billion, two hundred twelve million, two hundred two thousand, three hundred twenty-three".