233330001210221 has 4 divisors (see below), whose sum is σ = 233348098640412. Its totient is φ = 233311903780032.

The previous prime is 233330001210209. The next prime is 233330001210277. The reversal of 233330001210221 is 122012100033332.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 151430867775625 + 81899133434596 = 12305725^2 + 9049814^2 .

It is a cyclic number.

It is not a de Polignac number, because 233330001210221 - 2³⁰ = 233328927468397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233330001210821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9048695756 + ... + 9048721541.

It is an arithmetic number, because the mean of its divisors is an integer number (58337024660103).

Almost surely, 2^{233330001210221} is an apocalyptic number.

It is an amenable number.

233330001210221 is a deficient number, since it is larger than the sum of its proper divisors (18097430191).

233330001210221 is a wasteful number, since it uses less digits than its factorization.

233330001210221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18097430190.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 233330001210221 its reverse (122012100033332), we get a palindrome (355342101243553).

The spelling of 233330001210221 in words is "two hundred thirty-three trillion, three hundred thirty billion, one million, two hundred ten thousand, two hundred twenty-one".