12210223332121 has 4 divisors (see below), whose sum is σ = 12210245334144. Its totient is φ = 12210201330100.

The previous prime is 12210223332103. The next prime is 12210223332133. The reversal of 12210223332121 is 12123332201221.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12210223332121 - 2⁹ = 12210223331609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12210223372121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10146445 + ... + 11285866.

It is an arithmetic number, because the mean of its divisors is an integer number (3052561333536).

Almost surely, 2^{12210223332121} is an apocalyptic number.

It is an amenable number.

12210223332121 is a deficient number, since it is larger than the sum of its proper divisors (22002023).

12210223332121 is an equidigital number, since it uses as much as digits as its factorization.

12210223332121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22002022.

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

Adding to 12210223332121 its reverse (12123332201221), we get a palindrome (24333555533342).

The spelling of 12210223332121 in words is "twelve trillion, two hundred ten billion, two hundred twenty-three million, three hundred thirty-two thousand, one hundred twenty-one".