211100221213 has 16 divisors (see below), whose sum is σ = 242048643840. Its totient is φ = 180350585856.

The previous prime is 211100221181. The next prime is 211100221231. The reversal of 211100221213 is 312122001112.

It is not a de Polignac number, because 211100221213 - 2⁵ = 211100221181 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211100221313) 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, 2597448 + ... + 2677486.

It is an arithmetic number, because the mean of its divisors is an integer number (15128040240).

Almost surely, 2^211100221213 is an apocalyptic number.

It is an amenable number.

211100221213 is a deficient number, since it is larger than the sum of its proper divisors (30948422627).

211100221213 is an equidigital number, since it uses as much as digits as its factorization.

211100221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81276.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 211100221213 its reverse (312122001112), we get a palindrome (523222222325).

The spelling of 211100221213 in words is "two hundred eleven billion, one hundred million, two hundred twenty-one thousand, two hundred thirteen".