21332120003001 has 24 divisors (see below), whose sum is σ = 30821314797000. Its totient is φ = 14217605056512.

The previous prime is 21332120002981. The next prime is 21332120003027. The reversal of 21332120003001 is 10030002123312.

21332120003001 is a `hidden beast` number, since 21 + 3 + 321 + 20 + 0 + 0 + 300 + 1 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 10416265675776 + 10915854327225 = 3227424^2 + 3303915^2 .

It is not a de Polignac number, because 21332120003001 - 2¹⁰ = 21332120001977 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21332120003081) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 648987795 + ... + 649020663.

It is an arithmetic number, because the mean of its divisors is an integer number (1284221449875).

Almost surely, 2^{21332120003001} is an apocalyptic number.

It is an amenable number.

21332120003001 is a deficient number, since it is larger than the sum of its proper divisors (9489194793999).

21332120003001 is a wasteful number, since it uses less digits than its factorization.

21332120003001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49993 (or 49990 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 21332120003001 its reverse (10030002123312), we get a palindrome (31362122126313).

The spelling of 21332120003001 in words is "twenty-one trillion, three hundred thirty-two billion, one hundred twenty million, three thousand, one".