21114344210124 has 96 divisors (see below), whose sum is σ = 54492589831680. Its totient is φ = 6309874713600.

The previous prime is 21114344210093. The next prime is 21114344210129. The reversal of 21114344210124 is 42101244341112.

It is a junction number, because it is equal to n+sod(n) for n = 21114344210091 and 21114344210100.

It is not an unprimeable number, because it can be changed into a prime (21114344210129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 54682 + ... + 6498590.

It is an arithmetic number, because the mean of its divisors is an integer number (567631144080).

Almost surely, 2^{21114344210124} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21114344210124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27246294915840).

21114344210124 is an abundant number, since it is smaller than the sum of its proper divisors (33378245621556).

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

21114344210124 is a wasteful number, since it uses less digits than its factorization.

21114344210124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6444271 (or 6444269 counting only the distinct ones).

The product of its (nonzero) digits is 6144, while the sum is 30.

Adding to 21114344210124 its reverse (42101244341112), we get a palindrome (63215588551236).

The spelling of 21114344210124 in words is "twenty-one trillion, one hundred fourteen billion, three hundred forty-four million, two hundred ten thousand, one hundred twenty-four".