12121211324 has 12 divisors (see below), whose sum is σ = 22134386064. Its totient is φ = 5797101024.

The previous prime is 12121211321. The next prime is 12121211351. The reversal of 12121211324 is 42311212121.

12121211324 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12121211324² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12121211296 and 12121211305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12121211321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 65876057 + ... + 65876240.

It is an arithmetic number, because the mean of its divisors is an integer number (1844532172).

Almost surely, 2^12121211324 is an apocalyptic number.

It is an amenable number.

12121211324 is a deficient number, since it is larger than the sum of its proper divisors (10013174740).

12121211324 is a wasteful number, since it uses less digits than its factorization.

12121211324 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131752324 (or 131752322 counting only the distinct ones).

The product of its digits is 192, while the sum is 20.

Adding to 12121211324 its reverse (42311212121), we get a palindrome (54432423445).

The spelling of 12121211324 in words is "twelve billion, one hundred twenty-one million, two hundred eleven thousand, three hundred twenty-four".