213193211 has 16 divisors (see below), whose sum is σ = 268389888. Its totient is φ = 164505600.

The previous prime is 213193177. The next prime is 213193217. The reversal of 213193211 is 112391312.

It is not a de Polignac number, because 213193211 - 2⁶ = 213193147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213193217) 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, 5510 + ... + 21371.

It is an arithmetic number, because the mean of its divisors is an integer number (16774368).

Almost surely, 2^213193211 is an apocalyptic number.

213193211 is a deficient number, since it is larger than the sum of its proper divisors (55196677).

213193211 is a wasteful number, since it uses less digits than its factorization.

213193211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27002.

The product of its digits is 324, while the sum is 23.

The square root of 213193211 is about 14601.1373187160. The cubic root of 213193211 is about 597.3897823695.

The spelling of 213193211 in words is "two hundred thirteen million, one hundred ninety-three thousand, two hundred eleven".