213226211 has 16 divisors (see below), whose sum is σ = 237714048. Its totient is φ = 189633600.

The previous prime is 213226201. The next prime is 213226217. The reversal of 213226211 is 112622312.

It is a cyclic number.

It is not a de Polignac number, because 213226211 - 2⁶ = 213226147 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213226217) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 104180 + ... + 106206.

It is an arithmetic number, because the mean of its divisors is an integer number (14857128).

Almost surely, 2^213226211 is an apocalyptic number.

213226211 is a deficient number, since it is larger than the sum of its proper divisors (24487837).

213226211 is a wasteful number, since it uses less digits than its factorization.

213226211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2242.

The product of its digits is 288, while the sum is 20.

The square root of 213226211 is about 14602.2673239466. The cubic root of 213226211 is about 597.4206039353.

Adding to 213226211 its reverse (112622312), we get a palindrome (325848523).

The spelling of 213226211 in words is "two hundred thirteen million, two hundred twenty-six thousand, two hundred eleven".