12121123332 has 24 divisors (see below), whose sum is σ = 28505322496. Its totient is φ = 4008559968.

The previous prime is 12121123331. The next prime is 12121123379. The reversal of 12121123332 is 23332112121.

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 12121123299 and 12121123308.

It is not an unprimeable number, because it can be changed into a prime (12121123331) 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, 3975223 + ... + 3978270.

Almost surely, 2^12121123332 is an apocalyptic number.

12121123332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

12121123332 is an abundant number, since it is smaller than the sum of its proper divisors (16384199164).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12121123332 is a wasteful number, since it uses less digits than its factorization.

12121123332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7953627 (or 7953625 counting only the distinct ones).

The product of its digits is 432, while the sum is 21.

Adding to 12121123332 its reverse (23332112121), we get a palindrome (35453235453).

The spelling of 12121123332 in words is "twelve billion, one hundred twenty-one million, one hundred twenty-three thousand, three hundred thirty-two".