21233312101 has 8 divisors (see below), whose sum is σ = 21833913024. Its totient is φ = 20636650080.

The previous prime is 21233312053. The next prime is 21233312129. The reversal of 21233312101 is 10121333212.

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 21233312101 - 2⁷ = 21233311973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233312141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 973791 + ... + 995356.

It is an arithmetic number, because the mean of its divisors is an integer number (2729239128).

Almost surely, 2^21233312101 is an apocalyptic number.

It is an amenable number.

21233312101 is a deficient number, since it is larger than the sum of its proper divisors (600600923).

21233312101 is a wasteful number, since it uses less digits than its factorization.

21233312101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1969451.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21233312101 its reverse (10121333212), we get a palindrome (31354645313).

The spelling of 21233312101 in words is "twenty-one billion, two hundred thirty-three million, three hundred twelve thousand, one hundred one".