12201110123 has 4 divisors (see below), whose sum is σ = 12233821248. Its totient is φ = 12168399000.

The previous prime is 12201110101. The next prime is 12201110161. The reversal of 12201110123 is 32101110221.

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 12201110123 - 2²⁸ = 11932674667 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201110098 and 12201110107.

It is not an unprimeable number, because it can be changed into a prime (12201160123) 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, 16355003 + ... + 16355748.

It is an arithmetic number, because the mean of its divisors is an integer number (3058455312).

Almost surely, 2^12201110123 is an apocalyptic number.

12201110123 is a deficient number, since it is larger than the sum of its proper divisors (32711125).

12201110123 is an equidigital number, since it uses as much as digits as its factorization.

12201110123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32711124.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 12201110123 its reverse (32101110221), we get a palindrome (44302220344).

The spelling of 12201110123 in words is "twelve billion, two hundred one million, one hundred ten thousand, one hundred twenty-three".