16213231211 has 16 divisors (see below), whose sum is σ = 17466904800. Its totient is φ = 14993154048.

The previous prime is 16213231207. The next prime is 16213231213. The reversal of 16213231211 is 11213231261.

16213231211 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 16213231211 - 2² = 16213231207 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (16213231213) 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 15 ways as a sum of consecutive naturals, for example, 3095651 + ... + 3100883.

It is an arithmetic number, because the mean of its divisors is an integer number (1091681550).

Almost surely, 2^16213231211 is an apocalyptic number.

16213231211 is a deficient number, since it is larger than the sum of its proper divisors (1253673589).

16213231211 is a wasteful number, since it uses less digits than its factorization.

16213231211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8398.

The product of its digits is 432, while the sum is 23.

Adding to 16213231211 its reverse (11213231261), we get a palindrome (27426462472).

The spelling of 16213231211 in words is "sixteen billion, two hundred thirteen million, two hundred thirty-one thousand, two hundred eleven".