234204320221 has 8 divisors (see below), whose sum is σ = 239373880704. Its totient is φ = 229042530240.

The previous prime is 234204320209. The next prime is 234204320237. The reversal of 234204320221 is 122023402432.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-234204320221 is a prime.

It is a super-2 number, since 2×234204320221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234204320281) 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, 1881660 + ... + 2002261.

It is an arithmetic number, because the mean of its divisors is an integer number (29921735088).

Almost surely, 2^234204320221 is an apocalyptic number.

It is an amenable number.

234204320221 is a deficient number, since it is larger than the sum of its proper divisors (5169560483).

234204320221 is a wasteful number, since it uses less digits than its factorization.

234204320221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3885251.

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 234204320221 its reverse (122023402432), we get a palindrome (356227722653).

The spelling of 234204320221 in words is "two hundred thirty-four billion, two hundred four million, three hundred twenty thousand, two hundred twenty-one".