21213124522341 has 32 divisors (see below), whose sum is σ = 29597678443008. Its totient is φ = 13499793515520.

The previous prime is 21213124522141. The next prime is 21213124522351. The reversal of 21213124522341 is 14322542131212.

It is not a de Polignac number, because 21213124522341 - 2³⁰ = 21212050780517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21213124522351) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 327244765 + ... + 327309581.

It is an arithmetic number, because the mean of its divisors is an integer number (924927451344).

Almost surely, 2^{21213124522341} is an apocalyptic number.

It is an amenable number.

21213124522341 is a deficient number, since it is larger than the sum of its proper divisors (8384553920667).

21213124522341 is a wasteful number, since it uses less digits than its factorization.

21213124522341 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120541.

The product of its digits is 23040, while the sum is 33.

Adding to 21213124522341 its reverse (14322542131212), we get a palindrome (35535666653553).

The spelling of 21213124522341 in words is "twenty-one trillion, two hundred thirteen billion, one hundred twenty-four million, five hundred twenty-two thousand, three hundred forty-one".