234224221 has 16 divisors (see below), whose sum is σ = 293551488. Its totient is φ = 181555200.

The previous prime is 234224209. The next prime is 234224227. The reversal of 234224221 is 122422432.

It is a cyclic number.

It is not a de Polignac number, because 234224221 - 2²⁷ = 100006493 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234224192 and 234224201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234224227) 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, 6981 + ... + 22741.

It is an arithmetic number, because the mean of its divisors is an integer number (18346968).

Almost surely, 2^234224221 is an apocalyptic number.

It is an amenable number.

234224221 is a deficient number, since it is larger than the sum of its proper divisors (59327267).

234224221 is a wasteful number, since it uses less digits than its factorization.

234224221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15972.

The product of its digits is 1536, while the sum is 22.

The square root of 234224221 is about 15304.3856786217. The cubic root of 234224221 is about 616.4207758237.

Adding to 234224221 its reverse (122422432), we get a palindrome (356646653).

The spelling of 234224221 in words is "two hundred thirty-four million, two hundred twenty-four thousand, two hundred twenty-one".