21321522124141 has 8 divisors (see below), whose sum is σ = 22575913424064. Its totient is φ = 20067151281600.

The previous prime is 21321522124129. The next prime is 21321522124211. The reversal of 21321522124141 is 14142122512312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21321522124141 - 2³⁷ = 21184083170669 is a prime.

It is a super-2 number, since 2×21321522124141² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21321522164141) 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, 2942185 + ... + 7162366.

It is an arithmetic number, because the mean of its divisors is an integer number (2821989178008).

Almost surely, 2^{21321522124141} is an apocalyptic number.

It is an amenable number.

21321522124141 is a deficient number, since it is larger than the sum of its proper divisors (1254391299923).

21321522124141 is a wasteful number, since it uses less digits than its factorization.

21321522124141 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10228691.

The product of its digits is 7680, while the sum is 31.

Adding to 21321522124141 its reverse (14142122512312), we get a palindrome (35463644636453).

The spelling of 21321522124141 in words is "twenty-one trillion, three hundred twenty-one billion, five hundred twenty-two million, one hundred twenty-four thousand, one hundred forty-one".