233421541540221 has 8 divisors (see below), whose sum is σ = 311257007903520. Its totient is φ = 155600218101872.

The previous prime is 233421541540217. The next prime is 233421541540279. The reversal of 233421541540221 is 122045145124332.

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

It is a cyclic number.

It is not a de Polignac number, because 233421541540221 - 2² = 233421541540217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 233421541540221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233421541550221) 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, 3535692726 + ... + 3535758743.

It is an arithmetic number, because the mean of its divisors is an integer number (38907125987940).

Almost surely, 2^{233421541540221} is an apocalyptic number.

It is an amenable number.

233421541540221 is a deficient number, since it is larger than the sum of its proper divisors (77835466363299).

233421541540221 is a wasteful number, since it uses less digits than its factorization.

233421541540221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7071462475.

The product of its (nonzero) digits is 230400, while the sum is 39.

Adding to 233421541540221 its reverse (122045145124332), we get a palindrome (355466686664553).

The spelling of 233421541540221 in words is "two hundred thirty-three trillion, four hundred twenty-one billion, five hundred forty-one million, five hundred forty thousand, two hundred twenty-one".