21221132332001 has 8 divisors (see below), whose sum is σ = 25035068557824. Its totient is φ = 17602782579360.

The previous prime is 21221132331961. The next prime is 21221132332007. The reversal of 21221132332001 is 10023323112212.

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 21221132332001 - 2¹⁰ = 21221132330977 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21221132332007) 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, 48896618060 + ... + 48896618493.

It is an arithmetic number, because the mean of its divisors is an integer number (3129383569728).

Almost surely, 2^{21221132332001} is an apocalyptic number.

It is an amenable number.

21221132332001 is a deficient number, since it is larger than the sum of its proper divisors (3813936225823).

21221132332001 is an equidigital number, since it uses as much as digits as its factorization.

21221132332001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97793236591.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 21221132332001 its reverse (10023323112212), we get a palindrome (31244455444213).

The spelling of 21221132332001 in words is "twenty-one trillion, two hundred twenty-one billion, one hundred thirty-two million, three hundred thirty-two thousand, one".