21114331411124 has 144 divisors (see below), whose sum is σ = 45868090290624. Its totient is φ = 8450067225600.

The previous prime is 21114331411057. The next prime is 21114331411127. The reversal of 21114331411124 is 42111413341112.

It is a super-2 number, since 2×21114331411124² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21114331411127) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 361449479 + ... + 361507889.

It is an arithmetic number, because the mean of its divisors is an integer number (318528404796).

Almost surely, 2^{21114331411124} 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 21114331411124, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22934045145312).

21114331411124 is an abundant number, since it is smaller than the sum of its proper divisors (24753758879500).

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

21114331411124 is a wasteful number, since it uses less digits than its factorization.

21114331411124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59294 (or 59285 counting only the distinct ones).

The product of its digits is 2304, while the sum is 29.

Adding to 21114331411124 its reverse (42111413341112), we get a palindrome (63225744752236).

The spelling of 21114331411124 in words is "twenty-one trillion, one hundred fourteen billion, three hundred thirty-one million, four hundred eleven thousand, one hundred twenty-four".