12123221033213 has 8 divisors (see below), whose sum is σ = 12126234983808. Its totient is φ = 12120207319584.

The previous prime is 12123221033201. The next prime is 12123221033239. The reversal of 12123221033213 is 31233012232121.

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

It is a cyclic number.

It is not a de Polignac number, because 12123221033213 - 2⁶ = 12123221033149 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 (12123221833213) 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, 143388770 + ... + 143473292.

It is an arithmetic number, because the mean of its divisors is an integer number (1515779372976).

Almost surely, 2^{12123221033213} is an apocalyptic number.

It is an amenable number.

12123221033213 is a deficient number, since it is larger than the sum of its proper divisors (3013950595).

12123221033213 is an equidigital number, since it uses as much as digits as its factorization.

12123221033213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118483.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12123221033213 its reverse (31233012232121), we get a palindrome (43356233265334).

The spelling of 12123221033213 in words is "twelve trillion, one hundred twenty-three billion, two hundred twenty-one million, thirty-three thousand, two hundred thirteen".