12430022121 has 24 divisors (see below), whose sum is σ = 19599733920. Its totient is φ = 7528334400.

The previous prime is 12430022113. The next prime is 12430022153. The reversal of 12430022121 is 12122003421.

It is a happy number.

12430022121 is a `hidden beast` number, since 12 + 430 + 0 + 221 + 2 + 1 = 666.

It is not a de Polignac number, because 12430022121 - 2³ = 12430022113 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12430022094 and 12430022103.

It is not an unprimeable number, because it can be changed into a prime (12430022161) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 110565 + ... + 192573.

It is an arithmetic number, because the mean of its divisors is an integer number (816655580).

Almost surely, 2^12430022121 is an apocalyptic number.

12430022121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12430022121 is a deficient number, since it is larger than the sum of its proper divisors (7169711799).

12430022121 is a wasteful number, since it uses less digits than its factorization.

12430022121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83557 (or 83554 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 12430022121 its reverse (12122003421), we get a palindrome (24552025542).

The spelling of 12430022121 in words is "twelve billion, four hundred thirty million, twenty-two thousand, one hundred twenty-one".