21332032101 has 20 divisors (see below), whose sum is σ = 31874537772. Its totient is φ = 14217709248.

The previous prime is 21332032097. The next prime is 21332032103. The reversal of 21332032101 is 10123023312.

21332032101 is a `hidden beast` number, since 21 + 3 + 320 + 321 + 0 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 14792883876 + 6539148225 = 121626^2 + 80865^2 .

It is not a de Polignac number, because 21332032101 - 2² = 21332032097 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21332032103) 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 19 ways as a sum of consecutive naturals, for example, 305041 + ... + 368393.

Almost surely, 2^21332032101 is an apocalyptic number.

It is an amenable number.

21332032101 is a deficient number, since it is larger than the sum of its proper divisors (10542505671).

21332032101 is an equidigital number, since it uses as much as digits as its factorization.

21332032101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67522 (or 67513 counting only the distinct ones).

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

Adding to 21332032101 its reverse (10123023312), we get a palindrome (31455055413).

The spelling of 21332032101 in words is "twenty-one billion, three hundred thirty-two million, thirty-two thousand, one hundred one".