21120133132101 has 8 divisors (see below), whose sum is σ = 28160259240160. Its totient is φ = 14080047889392.

The previous prime is 21120133132079. The next prime is 21120133132127. The reversal of 21120133132101 is 10123133102112.

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

It is not a de Polignac number, because 21120133132101 - 2¹⁰ = 21120133131077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21120133132181) 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, 8989366 + ... + 11092743.

It is an arithmetic number, because the mean of its divisors is an integer number (3520032405020).

Almost surely, 2^{21120133132101} is an apocalyptic number.

It is an amenable number.

21120133132101 is a deficient number, since it is larger than the sum of its proper divisors (7040126108059).

21120133132101 is a wasteful number, since it uses less digits than its factorization.

21120133132101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20432675.

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

Adding to 21120133132101 its reverse (10123133102112), we get a palindrome (31243266234213).

The spelling of 21120133132101 in words is "twenty-one trillion, one hundred twenty billion, one hundred thirty-three million, one hundred thirty-two thousand, one hundred one".