213221403223 has 8 divisors (see below), whose sum is σ = 225929966720. Its totient is φ = 200661478200.

The previous prime is 213221403209. The next prime is 213221403229. The reversal of 213221403223 is 322304122312.

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 213221403223 - 2⁹ = 213221402711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213221403229) 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, 37156665 + ... + 37162402.

It is an arithmetic number, because the mean of its divisors is an integer number (28241245840).

Almost surely, 2^213221403223 is an apocalyptic number.

213221403223 is a deficient number, since it is larger than the sum of its proper divisors (12708563497).

213221403223 is a wasteful number, since it uses less digits than its factorization.

213221403223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74319237.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 213221403223 its reverse (322304122312), we get a palindrome (535525525535).

The spelling of 213221403223 in words is "two hundred thirteen billion, two hundred twenty-one million, four hundred three thousand, two hundred twenty-three".