12230240121 has 24 divisors (see below), whose sum is σ = 19410562080. Its totient is φ = 7358932800.

The previous prime is 12230240119. The next prime is 12230240123. The reversal of 12230240121 is 12104203221.

It is a happy number.

12230240121 is a `hidden beast` number, since 12 + 230 + 2 + 401 + 21 = 666.

It is an interprime number because it is at equal distance from previous prime (12230240119) and next prime (12230240123).

It is not a de Polignac number, because 12230240121 - 2¹ = 12230240119 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12230240094 and 12230240103.

It is not an unprimeable number, because it can be changed into a prime (12230240123) 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, 430620 + ... + 458141.

It is an arithmetic number, because the mean of its divisors is an integer number (808773420).

Almost surely, 2^12230240121 is an apocalyptic number.

12230240121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12230240121 is a deficient number, since it is larger than the sum of its proper divisors (7180321959).

12230240121 is a wasteful number, since it uses less digits than its factorization.

12230240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 888917 (or 888914 counting only the distinct ones).

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

Adding to 12230240121 its reverse (12104203221), we get a palindrome (24334443342).

The spelling of 12230240121 in words is "twelve billion, two hundred thirty million, two hundred forty thousand, one hundred twenty-one".