21033310101 has 8 divisors (see below), whose sum is σ = 28045106880. Its totient is φ = 14021860032.

The previous prime is 21033310091. The next prime is 21033310127. The reversal of 21033310101 is 10101333012.

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

It is not a de Polignac number, because 21033310101 - 2¹¹ = 21033308053 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 (21033310171) 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, 138301 + ... + 247373.

It is an arithmetic number, because the mean of its divisors is an integer number (3505638360).

Almost surely, 2^21033310101 is an apocalyptic number.

It is an amenable number.

21033310101 is a deficient number, since it is larger than the sum of its proper divisors (7011796779).

21033310101 is a wasteful number, since it uses less digits than its factorization.

21033310101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173355.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 21033310101 its reverse (10101333012), we get a palindrome (31134643113).

The spelling of 21033310101 in words is "twenty-one billion, thirty-three million, three hundred ten thousand, one hundred one".