12232240121 has 16 divisors (see below), whose sum is σ = 13334630400. Its totient is φ = 11186495760.

The previous prime is 12232240117. The next prime is 12232240151. The reversal of 12232240121 is 12104223221.

It is a cyclic number.

It is not a de Polignac number, because 12232240121 - 2² = 12232240117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12232240093 and 12232240102.

It is not an unprimeable number, because it can be changed into a prime (12232240151) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44171 + ... + 162528.

It is an arithmetic number, because the mean of its divisors is an integer number (833414400).

Almost surely, 2^12232240121 is an apocalyptic number.

It is an amenable number.

12232240121 is a deficient number, since it is larger than the sum of its proper divisors (1102390279).

12232240121 is a wasteful number, since it uses less digits than its factorization.

12232240121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206836.

The product of its (nonzero) digits is 384, while the sum is 20.

Adding to 12232240121 its reverse (12104223221), we get a palindrome (24336463342).

The spelling of 12232240121 in words is "twelve billion, two hundred thirty-two million, two hundred forty thousand, one hundred twenty-one".