21332440121001 has 16 divisors (see below), whose sum is σ = 28915979100864. Its totient is φ = 13986386809344.

The previous prime is 21332440120939. The next prime is 21332440121033. The reversal of 21332440121001 is 10012104423312.

It is not a de Polignac number, because 21332440121001 - 2¹⁷ = 21332439989929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21332440128001) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 140281936 + ... + 140433921.

It is an arithmetic number, because the mean of its divisors is an integer number (1807248693804).

Almost surely, 2^{21332440121001} is an apocalyptic number.

It is an amenable number.

21332440121001 is a deficient number, since it is larger than the sum of its proper divisors (7583538979863).

21332440121001 is a wasteful number, since it uses less digits than its factorization.

21332440121001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280716280.

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 21332440121001 its reverse (10012104423312), we get a palindrome (31344544544313).

The spelling of 21332440121001 in words is "twenty-one trillion, three hundred thirty-two billion, four hundred forty million, one hundred twenty-one thousand, one".