21332333105 has 8 divisors (see below), whose sum is σ = 25705020264. Its totient is φ = 16995052800.

The previous prime is 21332333101. The next prime is 21332333123. The reversal of 21332333105 is 50133323312.

It can be written as a sum of positive squares in 4 ways, for example, as 5012781601 + 16319551504 = 70801^2 + 127748^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21332333105 - 2² = 21332333101 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21332333101) 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, 8850386 + ... + 8852795.

It is an arithmetic number, because the mean of its divisors is an integer number (3213127533).

Almost surely, 2^21332333105 is an apocalyptic number.

It is an amenable number.

21332333105 is a deficient number, since it is larger than the sum of its proper divisors (4372687159).

21332333105 is a wasteful number, since it uses less digits than its factorization.

21332333105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17703427.

The product of its (nonzero) digits is 4860, while the sum is 26.

Adding to 21332333105 its reverse (50133323312), we get a palindrome (71465656417).

The spelling of 21332333105 in words is "twenty-one billion, three hundred thirty-two million, three hundred thirty-three thousand, one hundred five".