21113320122001 has 8 divisors (see below), whose sum is σ = 22031476899264. Its totient is φ = 20195178872880.

The previous prime is 21113320121983. The next prime is 21113320122007. The reversal of 21113320122001 is 10022102331112.

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 21113320122001 - 2⁵ = 21113320121969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 21113320122001.

It is not an unprimeable number, because it can be changed into a prime (21113320122007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1059886 + ... + 6584071.

It is an arithmetic number, because the mean of its divisors is an integer number (2753934612408).

Almost surely, 2^{21113320122001} is an apocalyptic number.

It is an amenable number.

21113320122001 is a deficient number, since it is larger than the sum of its proper divisors (918156777263).

21113320122001 is a wasteful number, since it uses less digits than its factorization.

21113320122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764071.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 21113320122001 its reverse (10022102331112), we get a palindrome (31135422453113).

The spelling of 21113320122001 in words is "twenty-one trillion, one hundred thirteen billion, three hundred twenty million, one hundred twenty-two thousand, one".