21132141121 has 8 divisors (see below), whose sum is σ = 26008789184. Its totient is φ = 16719935760.

The previous prime is 21132141083. The next prime is 21132141131. The reversal of 21132141121 is 12114123112.

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 21132141121 - 2⁹ = 21132140609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21132141131) 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, 116110575 + ... + 116110756.

It is an arithmetic number, because the mean of its divisors is an integer number (3251098648).

Almost surely, 2^21132141121 is an apocalyptic number.

It is an amenable number.

21132141121 is a deficient number, since it is larger than the sum of its proper divisors (4876648063).

21132141121 is a wasteful number, since it uses less digits than its factorization.

21132141121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232221351.

The product of its digits is 96, while the sum is 19.

Adding to 21132141121 its reverse (12114123112), we get a palindrome (33246264233).

The spelling of 21132141121 in words is "twenty-one billion, one hundred thirty-two million, one hundred forty-one thousand, one hundred twenty-one".