233030032221 has 16 divisors (see below), whose sum is σ = 355445340800. Its totient is φ = 133028034048.

The previous prime is 233030032219. The next prime is 233030032231. The reversal of 233030032221 is 122230030332.

233030032221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 233030032221 - 2¹ = 233030032219 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233030032231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5477656 + ... + 5520033.

It is an arithmetic number, because the mean of its divisors is an integer number (22215333800).

Almost surely, 2^233030032221 is an apocalyptic number.

233030032221 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

233030032221 is a deficient number, since it is larger than the sum of its proper divisors (122415308579).

233030032221 is a wasteful number, since it uses less digits than its factorization.

233030032221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10998708.

The product of its (nonzero) digits is 1296, while the sum is 21.

Adding to 233030032221 its reverse (122230030332), we get a palindrome (355260062553).

The spelling of 233030032221 in words is "two hundred thirty-three billion, thirty million, thirty-two thousand, two hundred twenty-one".