21010101000330 has 128 divisors (see below), whose sum is σ = 54904117911552. Its totient is φ = 5114606047488.

The previous prime is 21010101000323. The next prime is 21010101000331. The reversal of 21010101000330 is 3300010101012.

It is not an unprimeable number, because it can be changed into a prime (21010101000331) 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 63 ways as a sum of consecutive naturals, for example, 29494339 + ... + 30198281.

It is an arithmetic number, because the mean of its divisors is an integer number (428938421184).

Almost surely, 2^{21010101000330} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21010101000330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27452058955776).

21010101000330 is an abundant number, since it is smaller than the sum of its proper divisors (33894016911222).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21010101000330 is a wasteful number, since it uses less digits than its factorization.

21010101000330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 704812.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 21010101000330 its reverse (3300010101012), we get a palindrome (24310111101342).

The spelling of 21010101000330 in words is "twenty-one trillion, ten billion, one hundred one million, three hundred thirty", and thus it is an aban number.