233120133221 has 16 divisors (see below), whose sum is σ = 253579854528. Its totient is φ = 213450720000.

The previous prime is 233120133209. The next prime is 233120133229. The reversal of 233120133221 is 122331021332.

It is a cyclic number.

It is not a de Polignac number, because 233120133221 - 2¹⁰ = 233120132197 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 (233120133229) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 451790 + ... + 818751.

It is an arithmetic number, because the mean of its divisors is an integer number (15848740908).

Almost surely, 2^233120133221 is an apocalyptic number.

It is an amenable number.

233120133221 is a deficient number, since it is larger than the sum of its proper divisors (20459721307).

233120133221 is a wasteful number, since it uses less digits than its factorization.

233120133221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1270852.

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

Adding to 233120133221 its reverse (122331021332), we get a palindrome (355451154553).

The spelling of 233120133221 in words is "two hundred thirty-three billion, one hundred twenty million, one hundred thirty-three thousand, two hundred twenty-one".