213225311 has 8 divisors (see below), whose sum is σ = 231092064. Its totient is φ = 195567840.

The previous prime is 213225301. The next prime is 213225343. The reversal of 213225311 is 113522312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 213225311 - 2¹⁴ = 213208927 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 (213225301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50195 + ... + 54276.

It is an arithmetic number, because the mean of its divisors is an integer number (28886508).

Almost surely, 2^213225311 is an apocalyptic number.

213225311 is a deficient number, since it is larger than the sum of its proper divisors (17866753).

213225311 is a wasteful number, since it uses less digits than its factorization.

213225311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104641.

The product of its digits is 360, while the sum is 20.

The square root of 213225311 is about 14602.2365067821. The cubic root of 213225311 is about 597.4197633893.

Adding to 213225311 its reverse (113522312), we get a palindrome (326747623).

The spelling of 213225311 in words is "two hundred thirteen million, two hundred twenty-five thousand, three hundred eleven".