21000110020211 has 8 divisors (see below), whose sum is σ = 24585494658144. Its totient is φ = 17561067612480.

The previous prime is 21000110020163. The next prime is 21000110020213. The reversal of 21000110020211 is 11202001100012.

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

It is a de Polignac number, because none of the positive numbers 2^k-21000110020211 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21000110020192 and 21000110020201.

It is not an unprimeable number, because it can be changed into a prime (21000110020213) 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, 36585557240 + ... + 36585557813.

It is an arithmetic number, because the mean of its divisors is an integer number (3073186832268).

Almost surely, 2^{21000110020211} is an apocalyptic number.

21000110020211 is a deficient number, since it is larger than the sum of its proper divisors (3585384637933).

21000110020211 is an equidigital number, since it uses as much as digits as its factorization.

21000110020211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73171115101.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 21000110020211 its reverse (11202001100012), we get a palindrome (32202111120223).

The spelling of 21000110020211 in words is "twenty-one trillion, one hundred ten million, twenty thousand, two hundred eleven".