12001223212133 has 8 divisors (see below), whose sum is σ = 12954843648000. Its totient is φ = 11083588453168.

The previous prime is 12001223212123. The next prime is 12001223212151. The reversal of 12001223212133 is 33121232210021.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12001223212133 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12001223212099 and 12001223212108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12001223212123) 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, 8996418533 + ... + 8996419866.

It is an arithmetic number, because the mean of its divisors is an integer number (1619355456000).

Almost surely, 2^{12001223212133} is an apocalyptic number.

It is an amenable number.

12001223212133 is a deficient number, since it is larger than the sum of its proper divisors (953620435867).

12001223212133 is a wasteful number, since it uses less digits than its factorization.

12001223212133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17992838451.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12001223212133 its reverse (33121232210021), we get a palindrome (45122455422154).

The spelling of 12001223212133 in words is "twelve trillion, one billion, two hundred twenty-three million, two hundred twelve thousand, one hundred thirty-three".