234043201221 has 16 divisors (see below), whose sum is σ = 323334400320. Its totient is φ = 150490196480.

The previous prime is 234043201207. The next prime is 234043201243. The reversal of 234043201221 is 122102340432.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 234043201221 - 2⁶ = 234043201157 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 234043201191 and 234043201200.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234043201621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12464940 + ... + 12483701.

It is an arithmetic number, because the mean of its divisors is an integer number (20208400020).

Almost surely, 2^234043201221 is an apocalyptic number.

It is an amenable number.

234043201221 is a deficient number, since it is larger than the sum of its proper divisors (89291199099).

234043201221 is a wasteful number, since it uses less digits than its factorization.

234043201221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24948756.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 234043201221 its reverse (122102340432), we get a palindrome (356145541653).

The spelling of 234043201221 in words is "two hundred thirty-four billion, forty-three million, two hundred one thousand, two hundred twenty-one".