211320221103 has 12 divisors (see below), whose sum is σ = 305301395880. Its totient is φ = 140851958256.

The previous prime is 211320221093. The next prime is 211320221111. The reversal of 211320221103 is 301122023112.

211320221103 is a `hidden beast` number, since 21 + 1 + 320 + 221 + 103 = 666.

It is not a de Polignac number, because 211320221103 - 2¹⁰ = 211320220079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211320221143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2301568 + ... + 2391621.

It is an arithmetic number, because the mean of its divisors is an integer number (25441782990).

Almost surely, 2^211320221103 is an apocalyptic number.

211320221103 is a deficient number, since it is larger than the sum of its proper divisors (93981174777).

211320221103 is a wasteful number, since it uses less digits than its factorization.

211320221103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4698198 (or 4698195 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 211320221103 its reverse (301122023112), we get a palindrome (512442244215).

The spelling of 211320221103 in words is "two hundred eleven billion, three hundred twenty million, two hundred twenty-one thousand, one hundred three".