12122210123 has 4 divisors (see below), whose sum is σ = 12122481168. Its totient is φ = 12121939080.

The previous prime is 12122210119. The next prime is 12122210131. The reversal of 12122210123 is 32101222121.

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 12122210123 - 2² = 12122210119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12122210143) 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, 50768 + ... + 163773.

It is an arithmetic number, because the mean of its divisors is an integer number (3030620292).

Almost surely, 2^12122210123 is an apocalyptic number.

12122210123 is a deficient number, since it is larger than the sum of its proper divisors (271045).

12122210123 is an equidigital number, since it uses as much as digits as its factorization.

12122210123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271044.

The product of its (nonzero) digits is 96, while the sum is 17.

Adding to 12122210123 its reverse (32101222121), we get a palindrome (44223432244).

The spelling of 12122210123 in words is "twelve billion, one hundred twenty-two million, two hundred ten thousand, one hundred twenty-three".