21103100120211 has 8 divisors (see below), whose sum is σ = 28897938903504. Its totient is φ = 13688497375200.

The previous prime is 21103100120173. The next prime is 21103100120213. The reversal of 21103100120211 is 11202100130112.

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-21103100120211 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21103100120213) 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, 95059009440 + ... + 95059009661.

It is an arithmetic number, because the mean of its divisors is an integer number (3612242362938).

Almost surely, 2^{21103100120211} is an apocalyptic number.

21103100120211 is a deficient number, since it is larger than the sum of its proper divisors (7794838783293).

21103100120211 is a wasteful number, since it uses less digits than its factorization.

21103100120211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190118019141.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 21103100120211 its reverse (11202100130112), we get a palindrome (32305200250323).

Subtracting from 21103100120211 its reverse (11202100130112), we obtain a palindrome (9900999990099).

The spelling of 21103100120211 in words is "twenty-one trillion, one hundred three billion, one hundred million, one hundred twenty thousand, two hundred eleven".