12124223010221 has 4 divisors (see below), whose sum is σ = 13856254868832. Its totient is φ = 10392191151612.

The previous prime is 12124223010191. The next prime is 12124223010233. The reversal of 12124223010221 is 12201032242121.

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 12124223010221 - 2¹⁴ = 12124222993837 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 (12124223010721) 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, 866015929295 + ... + 866015929308.

It is an arithmetic number, because the mean of its divisors is an integer number (3464063717208).

Almost surely, 2^{12124223010221} is an apocalyptic number.

It is an amenable number.

12124223010221 is a deficient number, since it is larger than the sum of its proper divisors (1732031858611).

12124223010221 is an equidigital number, since it uses as much as digits as its factorization.

12124223010221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1732031858610.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 12124223010221 its reverse (12201032242121), we get a palindrome (24325255252342).

The spelling of 12124223010221 in words is "twelve trillion, one hundred twenty-four billion, two hundred twenty-three million, ten thousand, two hundred twenty-one".