12122434120231 has 4 divisors (see below), whose sum is σ = 12122441401864. Its totient is φ = 12122426838600.

The previous prime is 12122434120213. The next prime is 12122434120253. The reversal of 12122434120231 is 13202143422121.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 12122434120231 - 2²³ = 12122425731623 is a prime.

It is a super-2 number, since 2×12122434120231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12122434120231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122434120031) 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, 223696 + ... + 4928986.

It is an arithmetic number, because the mean of its divisors is an integer number (3030610350466).

Almost surely, 2^{12122434120231} is an apocalyptic number.

12122434120231 is a deficient number, since it is larger than the sum of its proper divisors (7281633).

12122434120231 is an equidigital number, since it uses as much as digits as its factorization.

12122434120231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7281632.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 12122434120231 its reverse (13202143422121), we get a palindrome (25324577542352).

The spelling of 12122434120231 in words is "twelve trillion, one hundred twenty-two billion, four hundred thirty-four million, one hundred twenty thousand, two hundred thirty-one".