21332200130121 has 4 divisors (see below), whose sum is σ = 28442933506832. Its totient is φ = 14221466753412.

The previous prime is 21332200130113. The next prime is 21332200130203. The reversal of 21332200130121 is 12103100223312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21332200130121 - 2³ = 21332200130113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21332200630121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3555366688351 + ... + 3555366688356.

It is an arithmetic number, because the mean of its divisors is an integer number (7110733376708).

Almost surely, 2^{21332200130121} is an apocalyptic number.

It is an amenable number.

21332200130121 is a deficient number, since it is larger than the sum of its proper divisors (7110733376711).

21332200130121 is an equidigital number, since it uses as much as digits as its factorization.

21332200130121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7110733376710.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 21332200130121 its reverse (12103100223312), we get a palindrome (33435300353433).

The spelling of 21332200130121 in words is "twenty-one trillion, three hundred thirty-two billion, two hundred million, one hundred thirty thousand, one hundred twenty-one".