213012223 has 8 divisors (see below), whose sum is σ = 223106400. Its totient is φ = 202987488.

The previous prime is 213012209. The next prime is 213012259. The reversal of 213012223 is 322210312.

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

It is a cyclic number.

It is not a de Polignac number, because 213012223 - 2¹³ = 213004031 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213012197 and 213012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213012263) 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, 11028 + ... + 23401.

It is an arithmetic number, because the mean of its divisors is an integer number (27888300).

Almost surely, 2^213012223 is an apocalyptic number.

213012223 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

213012223 is a deficient number, since it is larger than the sum of its proper divisors (10094177).

213012223 is a wasteful number, since it uses less digits than its factorization.

213012223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34721.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 213012223 is about 14594.9382663991. The cubic root of 213012223 is about 597.2206853773.

Adding to 213012223 its reverse (322210312), we get a palindrome (535222535).

The spelling of 213012223 in words is "two hundred thirteen million, twelve thousand, two hundred twenty-three".