12343310021221 has 8 divisors (see below), whose sum is σ = 12691024553088. Its totient is φ = 11997817308000.

The previous prime is 12343310021201. The next prime is 12343310021243. The reversal of 12343310021221 is 12212001334321.

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 12343310021221 - 2¹³ = 12343310013029 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 (12343310021201) 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, 555443395 + ... + 555465616.

It is an arithmetic number, because the mean of its divisors is an integer number (1586378069136).

Almost surely, 2^{12343310021221} is an apocalyptic number.

It is an amenable number.

12343310021221 is a deficient number, since it is larger than the sum of its proper divisors (347714531867).

12343310021221 is a wasteful number, since it uses less digits than its factorization.

12343310021221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1110909323.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12343310021221 its reverse (12212001334321), we get a palindrome (24555311355542).

It can be divided in two parts, 123433100 and 21221, that added together give a palindrome (123454321).

The spelling of 12343310021221 in words is "twelve trillion, three hundred forty-three billion, three hundred ten million, twenty-one thousand, two hundred twenty-one".