21132121330101 has 32 divisors (see below), whose sum is σ = 29522946096000. Its totient is φ = 13427461983488.

The previous prime is 21132121330063. The next prime is 21132121330189. The reversal of 21132121330101 is 10103312123112.

It is a cyclic number.

It is not a de Polignac number, because 21132121330101 - 2⁴³ = 12336028307893 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132121380101) 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, 7684015 + ... + 10065203.

It is an arithmetic number, because the mean of its divisors is an integer number (922592065500).

Almost surely, 2^{21132121330101} is an apocalyptic number.

It is an amenable number.

21132121330101 is a deficient number, since it is larger than the sum of its proper divisors (8390824765899).

21132121330101 is a wasteful number, since it uses less digits than its factorization.

21132121330101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382533.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 21132121330101 its reverse (10103312123112), we get a palindrome (31235433453213).

The spelling of 21132121330101 in words is "twenty-one trillion, one hundred thirty-two billion, one hundred twenty-one million, three hundred thirty thousand, one hundred one".