234442004332221 has 24 divisors (see below), whose sum is σ = 387015782624640. Its totient is φ = 133966717559136.

The previous prime is 234442004332201. The next prime is 234442004332259. The reversal of 234442004332221 is 122233400244432.

234442004332221 is a `hidden beast` number, since 2 + 3 + 4 + 4 + 420 + 0 + 4 + 3 + 3 + 2 + 221 = 666.

It is not a de Polignac number, because 234442004332221 - 2²³ = 234441995943613 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234442004332201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97010056 + ... + 99397358.

It is an arithmetic number, because the mean of its divisors is an integer number (16125657609360).

Almost surely, 2^{234442004332221} is an apocalyptic number.

234442004332221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

234442004332221 is a deficient number, since it is larger than the sum of its proper divisors (152573778292419).

234442004332221 is a wasteful number, since it uses less digits than its factorization.

234442004332221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3946105 (or 3946102 counting only the distinct ones).

The product of its (nonzero) digits is 221184, while the sum is 36.

Adding to 234442004332221 its reverse (122233400244432), we get a palindrome (356675404576653).

The spelling of 234442004332221 in words is "two hundred thirty-four trillion, four hundred forty-two billion, four million, three hundred thirty-two thousand, two hundred twenty-one".