221100102211 has 4 divisors (see below), whose sum is σ = 221107351024. Its totient is φ = 221092853400.

The previous prime is 221100102187. The next prime is 221100102259. The reversal of 221100102211 is 112201001122.

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 221100102211 - 2¹⁷ = 221099971139 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221100102191 and 221100102200.

It is not an unprimeable number, because it can be changed into a prime (221100106211) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3578460 + ... + 3639721.

It is an arithmetic number, because the mean of its divisors is an integer number (55276837756).

Almost surely, 2^221100102211 is an apocalyptic number.

221100102211 is a deficient number, since it is larger than the sum of its proper divisors (7248813).

221100102211 is an equidigital number, since it uses as much as digits as its factorization.

221100102211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7248812.

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

Adding to 221100102211 its reverse (112201001122), we get a palindrome (333301103333).

The spelling of 221100102211 in words is "two hundred twenty-one billion, one hundred million, one hundred two thousand, two hundred eleven".