213220334111 has 4 divisors (see below), whose sum is σ = 213223291632. Its totient is φ = 213217376592.

The previous prime is 213220334069. The next prime is 213220334113. The reversal of 213220334111 is 111433022312.

213220334111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 213220334111 - 2²⁶ = 213153225247 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 (213220334113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1367846 + ... + 1515731.

It is an arithmetic number, because the mean of its divisors is an integer number (53305822908).

Almost surely, 2^213220334111 is an apocalyptic number.

213220334111 is a deficient number, since it is larger than the sum of its proper divisors (2957521).

213220334111 is an equidigital number, since it uses as much as digits as its factorization.

213220334111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2957520.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 213220334111 its reverse (111433022312), we get a palindrome (324653356423).

The spelling of 213220334111 in words is "two hundred thirteen billion, two hundred twenty million, three hundred thirty-four thousand, one hundred eleven".