12342422121 has 8 divisors (see below), whose sum is σ = 16486650144. Its totient is φ = 8213237760.

The previous prime is 12342422107. The next prime is 12342422143. The reversal of 12342422121 is 12122424321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12342422121 - 2¹⁰ = 12342421097 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12342422091 and 12342422100.

It is not an unprimeable number, because it can be changed into a prime (12342422171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3759000 + ... + 3762281.

It is an arithmetic number, because the mean of its divisors is an integer number (2060831268).

Almost surely, 2^12342422121 is an apocalyptic number.

It is an amenable number.

12342422121 is a deficient number, since it is larger than the sum of its proper divisors (4144228023).

12342422121 is an equidigital number, since it uses as much as digits as its factorization.

12342422121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7521831.

The product of its digits is 1536, while the sum is 24.

Adding to 12342422121 its reverse (12122424321), we get a palindrome (24464846442).

The spelling of 12342422121 in words is "twelve billion, three hundred forty-two million, four hundred twenty-two thousand, one hundred twenty-one".