213111201 has 32 divisors (see below), whose sum is σ = 318211200. Its totient is φ = 126512640.

The previous prime is 213111191. The next prime is 213111203. The reversal of 213111201 is 102111312.

213111201 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 213111201 - 2¹¹ = 213109153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213111203) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 279661 + ... + 280421.

It is an arithmetic number, because the mean of its divisors is an integer number (9944100).

Almost surely, 2^213111201 is an apocalyptic number.

It is an amenable number.

213111201 is a deficient number, since it is larger than the sum of its proper divisors (105099999).

213111201 is an equidigital number, since it uses as much as digits as its factorization.

213111201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 834 (or 800 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 213111201 is about 14598.3287057115. The cubic root of 213111201 is about 597.3131723325.

Adding to 213111201 its reverse (102111312), we get a palindrome (315222513).

It can be divided in two parts, 213111 and 201, that added together give a palindrome (213312).

The spelling of 213111201 in words is "two hundred thirteen million, one hundred eleven thousand, two hundred one".