233011223221 has 8 divisors (see below), whose sum is σ = 266582751680. Its totient is φ = 199510747488.

The previous prime is 233011223177. The next prime is 233011223239. The reversal of 233011223221 is 122322110332.

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

It is not a de Polignac number, because 233011223221 - 2¹¹ = 233011221173 is a prime.

It is a super-2 number, since 2×233011223221² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233011223192 and 233011223201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233011227221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17756151 + ... + 17769268.

It is an arithmetic number, because the mean of its divisors is an integer number (33322843960).

Almost surely, 2^233011223221 is an apocalyptic number.

It is an amenable number.

233011223221 is a deficient number, since it is larger than the sum of its proper divisors (33571528459).

233011223221 is an equidigital number, since it uses as much as digits as its factorization.

233011223221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35526363.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 233011223221 its reverse (122322110332), we get a palindrome (355333333553).

The spelling of 233011223221 in words is "two hundred thirty-three billion, eleven million, two hundred twenty-three thousand, two hundred twenty-one".