2121234344124 has 24 divisors (see below), whose sum is σ = 5656624917888. Its totient is φ = 606066955440.

The previous prime is 2121234344123. The next prime is 2121234344149. The reversal of 2121234344124 is 4214434321212.

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121234344123) 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, 12626394822 + ... + 12626394989.

It is an arithmetic number, because the mean of its divisors is an integer number (235692704912).

Almost surely, 2^{2121234344124} is an apocalyptic number.

It is an amenable number.

2121234344124 is an abundant number, since it is smaller than the sum of its proper divisors (3535390573764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2121234344124 is a wasteful number, since it uses less digits than its factorization.

2121234344124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25252789825 (or 25252789823 counting only the distinct ones).

The product of its digits is 36864, while the sum is 33.

Adding to 2121234344124 its reverse (4214434321212), we get a palindrome (6335668665336).

The spelling of 2121234344124 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-four million, three hundred forty-four thousand, one hundred twenty-four".