12121121332233 has 24 divisors (see below), whose sum is σ = 18083206868480. Its totient is φ = 7815692047680.

The previous prime is 12121121332223. The next prime is 12121121332259. The reversal of 12121121332233 is 33223312112121.

12121121332233 is a `hidden beast` number, since 1 + 2 + 1 + 211 + 213 + 3 + 2 + 233 = 666.

It is not a de Polignac number, because 12121121332233 - 2⁴ = 12121121332217 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12121121332197 and 12121121332206.

It is not an unprimeable number, because it can be changed into a prime (12121121332223) 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 23 ways as a sum of consecutive naturals, for example, 11685628 + ... + 12680541.

Almost surely, 2^{12121121332233} is an apocalyptic number.

It is an amenable number.

12121121332233 is a deficient number, since it is larger than the sum of its proper divisors (5962085536247).

12121121332233 is a wasteful number, since it uses less digits than its factorization.

12121121332233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24367989 (or 24367986 counting only the distinct ones).

The product of its digits is 2592, while the sum is 27.

Adding to 12121121332233 its reverse (33223312112121), we get a palindrome (45344433444354).

The spelling of 12121121332233 in words is "twelve trillion, one hundred twenty-one billion, one hundred twenty-one million, three hundred thirty-two thousand, two hundred thirty-three".