21101001000211 has 8 divisors (see below), whose sum is σ = 23019501985200. Its totient is φ = 19182538043040.

The previous prime is 21101001000197. The next prime is 21101001000229. The reversal of 21101001000211 is 11200010010112.

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

It is a cyclic number.

It is not a de Polignac number, because 21101001000211 - 2²⁷ = 21100866782483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21101001000281) 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, 8340516 + ... + 10571953.

It is an arithmetic number, because the mean of its divisors is an integer number (2877437748150).

Almost surely, 2^{21101001000211} is an apocalyptic number.

21101001000211 is a deficient number, since it is larger than the sum of its proper divisors (1918500984989).

21101001000211 is a wasteful number, since it uses less digits than its factorization.

21101001000211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19013909.

The product of its (nonzero) digits is 4, while the sum is 10.

Adding to 21101001000211 its reverse (11200010010112), we get a palindrome (32301011010323).

Subtracting from 21101001000211 its reverse (11200010010112), we obtain a palindrome (9900990990099).

The spelling of 21101001000211 in words is "twenty-one trillion, one hundred one billion, one million, two hundred eleven", and thus it is an aban number.