213214111 has 4 divisors (see below), whose sum is σ = 232597224. Its totient is φ = 193831000.

The previous prime is 213214109. The next prime is 213214123. The reversal of 213214111 is 111412312.

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

It is not a de Polignac number, because 213214111 - 2¹ = 213214109 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 (213214811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9691540 + ... + 9691561.

It is an arithmetic number, because the mean of its divisors is an integer number (58149306).

Almost surely, 2^213214111 is an apocalyptic number.

213214111 is a deficient number, since it is larger than the sum of its proper divisors (19383113).

213214111 is a wasteful number, since it uses less digits than its factorization.

213214111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19383112.

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

The square root of 213214111 is about 14601.8529988492. The cubic root of 213214111 is about 597.4093030638.

Adding to 213214111 its reverse (111412312), we get a palindrome (324626423).

The spelling of 213214111 in words is "two hundred thirteen million, two hundred fourteen thousand, one hundred eleven".