21102011330202 has 48 divisors (see below), whose sum is σ = 51225521379552. Its totient is φ = 6221723240160.

The previous prime is 21102011330173. The next prime is 21102011330243. The reversal of 21102011330202 is 20203311020112.

21102011330202 is a `hidden beast` number, since 2 + 110 + 20 + 1 + 1 + 330 + 202 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 1440206388 + ... + 1440221039.

It is an arithmetic number, because the mean of its divisors is an integer number (1067198362074).

Almost surely, 2^{21102011330202} is an apocalyptic number.

21102011330202 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

21102011330202 is an abundant number, since it is smaller than the sum of its proper divisors (30123510049350).

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

21102011330202 is a wasteful number, since it uses less digits than its factorization.

21102011330202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2880427483 (or 2880427480 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 21102011330202 its reverse (20203311020112), we get a palindrome (41305322350314).

The spelling of 21102011330202 in words is "twenty-one trillion, one hundred two billion, eleven million, three hundred thirty thousand, two hundred two".