21102002000211 has 16 divisors (see below), whose sum is σ = 30694541948928. Its totient is φ = 12788791764000.

The previous prime is 21102002000207. The next prime is 21102002000213. The reversal of 21102002000211 is 11200020020112.

It is not a de Polignac number, because 21102002000211 - 2² = 21102002000207 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21102002000213) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6078451 + ... + 8896716.

It is an arithmetic number, because the mean of its divisors is an integer number (1918408871808).

Almost surely, 2^{21102002000211} is an apocalyptic number.

21102002000211 is a deficient number, since it is larger than the sum of its proper divisors (9592539948717).

21102002000211 is a wasteful number, since it uses less digits than its factorization.

21102002000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15017882.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 21102002000211 its reverse (11200020020112), we get a palindrome (32302022020323).

The spelling of 21102002000211 in words is "twenty-one trillion, one hundred two billion, two million, two hundred eleven", and thus it is an aban number.