21112200000211 has 4 divisors (see below), whose sum is σ = 21840206896800. Its totient is φ = 20384193103624.

The previous prime is 21112200000193. The next prime is 21112200000223. The reversal of 21112200000211 is 11200000221112.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 21112200000211 - 2²¹ = 21112197903059 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21112200000191 and 21112200000200.

It is not an unprimeable number, because it can be changed into a prime (21112200000811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 364003448251 + ... + 364003448308.

It is an arithmetic number, because the mean of its divisors is an integer number (5460051724200).

Almost surely, 2^{21112200000211} is an apocalyptic number.

21112200000211 is a deficient number, since it is larger than the sum of its proper divisors (728006896589).

21112200000211 is an equidigital number, since it uses as much as digits as its factorization.

21112200000211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 728006896588.

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

Adding to 21112200000211 its reverse (11200000221112), we get a palindrome (32312200221323).

The spelling of 21112200000211 in words is "twenty-one trillion, one hundred twelve billion, two hundred million, two hundred eleven", and thus it is an aban number.