21100220003330 has 64 divisors (see below), whose sum is σ = 43281442810368. Its totient is φ = 7347158353920.

The previous prime is 21100220003321. The next prime is 21100220003417. The reversal of 21100220003330 is 3330002200112.

It is a super-2 number, since 2×21100220003330² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21100220003299 and 21100220003308.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 49484399 + ... + 49908978.

It is an arithmetic number, because the mean of its divisors is an integer number (676272543912).

Almost surely, 2^{21100220003330} is an apocalyptic number.

21100220003330 is an abundant number, since it is smaller than the sum of its proper divisors (22181222807038).

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

21100220003330 is a wasteful number, since it uses less digits than its factorization.

21100220003330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99393491.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 21100220003330 its reverse (3330002200112), we get a palindrome (24430222203442).

The spelling of 21100220003330 in words is "twenty-one trillion, one hundred billion, two hundred twenty million, three thousand, three hundred thirty".