12150332433221 has 8 divisors (see below), whose sum is σ = 12367251922944. Its totient is φ = 11935307437200.

The previous prime is 12150332433133. The next prime is 12150332433223. The reversal of 12150332433221 is 12233423305121.

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-12150332433221 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12150332433223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 473610485 + ... + 473636138.

It is an arithmetic number, because the mean of its divisors is an integer number (1545906490368).

Almost surely, 2^{12150332433221} is an apocalyptic number.

It is an amenable number.

12150332433221 is a deficient number, since it is larger than the sum of its proper divisors (216919489723).

12150332433221 is a wasteful number, since it uses less digits than its factorization.

12150332433221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 947246851.

The product of its (nonzero) digits is 25920, while the sum is 32.

Adding to 12150332433221 its reverse (12233423305121), we get a palindrome (24383755738342).

The spelling of 12150332433221 in words is "twelve trillion, one hundred fifty billion, three hundred thirty-two million, four hundred thirty-three thousand, two hundred twenty-one".