213201221223 has 16 divisors (see below), whose sum is σ = 287819391456. Its totient is φ = 140367682560.

The previous prime is 213201221213. The next prime is 213201221227. The reversal of 213201221223 is 322122102312.

It is not a de Polignac number, because 213201221223 - 2¹³ = 213201213031 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213201221223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213201221227) 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, 1041318 + ... + 1229123.

It is an arithmetic number, because the mean of its divisors is an integer number (17988711966).

Almost surely, 2^213201221223 is an apocalyptic number.

213201221223 is a deficient number, since it is larger than the sum of its proper divisors (74618170233).

213201221223 is a wasteful number, since it uses less digits than its factorization.

213201221223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2270834.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213201221223 its reverse (322122102312), we get a palindrome (535323323535).

The spelling of 213201221223 in words is "two hundred thirteen billion, two hundred one million, two hundred twenty-one thousand, two hundred twenty-three".