12230121242421 has 64 divisors (see below), whose sum is σ = 19423496390400. Its totient is φ = 7672953381120.

The previous prime is 12230121242411. The next prime is 12230121242429. The reversal of 12230121242421 is 12424212103221.

12230121242421 is a `hidden beast` number, since 1 + 2 + 2 + 3 + 0 + 1 + 212 + 424 + 21 = 666.

12230121242421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12230121242421 - 2¹⁰ = 12230121241397 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12230121242429) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 629467935 + ... + 629487363.

It is an arithmetic number, because the mean of its divisors is an integer number (303492131100).

Almost surely, 2^{12230121242421} is an apocalyptic number.

It is an amenable number.

12230121242421 is a deficient number, since it is larger than the sum of its proper divisors (7193375147979).

12230121242421 is an equidigital number, since it uses as much as digits as its factorization.

12230121242421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36398 (or 36380 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 12230121242421 its reverse (12424212103221), we get a palindrome (24654333345642).

The spelling of 12230121242421 in words is "twelve trillion, two hundred thirty billion, one hundred twenty-one million, two hundred forty-two thousand, four hundred twenty-one".