12121333330 has 8 divisors (see below), whose sum is σ = 21818400012. Its totient is φ = 4848533328.

The previous prime is 12121333307. The next prime is 12121333361. The reversal of 12121333330 is 3333312121.

It can be written as a sum of positive squares in 2 ways, for example, as 11322875281 + 798458049 = 106409^2 + 28257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 606066657 + ... + 606066676.

Almost surely, 2^12121333330 is an apocalyptic number.

12121333330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12121333330 is a deficient number, since it is larger than the sum of its proper divisors (9697066682).

12121333330 is a wasteful number, since it uses less digits than its factorization.

12121333330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1212133340.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 12121333330 its reverse (3333312121), we get a palindrome (15454645451).

The spelling of 12121333330 in words is "twelve billion, one hundred twenty-one million, three hundred thirty-three thousand, three hundred thirty".