21102000120211 has 8 divisors (see below), whose sum is σ = 21829721184000. Its totient is φ = 20374283448960.

The previous prime is 21102000120209. The next prime is 21102000120247. The reversal of 21102000120211 is 11202100020112.

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

It is not a de Polignac number, because 21102000120211 - 2¹ = 21102000120209 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21102000120191 and 21102000120200.

It is not an unprimeable number, because it can be changed into a prime (21102000120251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10896315 + ... + 12685963.

It is an arithmetic number, because the mean of its divisors is an integer number (2728715148000).

Almost surely, 2^{21102000120211} is an apocalyptic number.

21102000120211 is a deficient number, since it is larger than the sum of its proper divisors (727721063789).

21102000120211 is a wasteful number, since it uses less digits than its factorization.

21102000120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2196269.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 21102000120211 its reverse (11202100020112), we get a palindrome (32304100140323).

The spelling of 21102000120211 in words is "twenty-one trillion, one hundred two billion, one hundred twenty thousand, two hundred eleven".