233240124221 has 4 divisors (see below), whose sum is σ = 251181672252. Its totient is φ = 215298576192.

The previous prime is 233240124203. The next prime is 233240124263. The reversal of 233240124221 is 122421042332.

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 41457439321 + 191782684900 = 203611^2 + 437930^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233240124221 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 (233240124281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8970773996 + ... + 8970774021.

It is an arithmetic number, because the mean of its divisors is an integer number (62795418063).

Almost surely, 2^233240124221 is an apocalyptic number.

It is an amenable number.

233240124221 is a deficient number, since it is larger than the sum of its proper divisors (17941548031).

233240124221 is a wasteful number, since it uses less digits than its factorization.

233240124221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17941548030.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 233240124221 its reverse (122421042332), we get a palindrome (355661166553).

The spelling of 233240124221 in words is "two hundred thirty-three billion, two hundred forty million, one hundred twenty-four thousand, two hundred twenty-one".