213200233221 has 32 divisors (see below), whose sum is σ = 287058844800. Its totient is φ = 140745911040.

The previous prime is 213200233217. The next prime is 213200233241. The reversal of 213200233221 is 122332002312.

It is a happy number.

It is not a de Polignac number, because 213200233221 - 2² = 213200233217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213200233241) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 209224450 + ... + 209225468.

It is an arithmetic number, because the mean of its divisors is an integer number (8970588900).

Almost surely, 2^213200233221 is an apocalyptic number.

It is an amenable number.

213200233221 is a deficient number, since it is larger than the sum of its proper divisors (73858611579).

213200233221 is a wasteful number, since it uses less digits than its factorization.

213200233221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2469.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 213200233221 its reverse (122332002312), we get a palindrome (335532235533).

The spelling of 213200233221 in words is "two hundred thirteen billion, two hundred million, two hundred thirty-three thousand, two hundred twenty-one".