234224433221 has 4 divisors (see below), whose sum is σ = 237720320352. Its totient is φ = 230728546092.

The previous prime is 234224433217. The next prime is 234224433239. The reversal of 234224433221 is 122334422432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 234224433221 - 2² = 234224433217 is a prime.

It is a super-2 number, since 2×234224433221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234224433241) 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, 1747943465 + ... + 1747943598.

It is an arithmetic number, because the mean of its divisors is an integer number (59430080088).

Almost surely, 2^234224433221 is an apocalyptic number.

It is an amenable number.

234224433221 is a deficient number, since it is larger than the sum of its proper divisors (3495887131).

234224433221 is an equidigital number, since it uses as much as digits as its factorization.

234224433221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3495887130.

The product of its digits is 55296, while the sum is 32.

Adding to 234224433221 its reverse (122334422432), we get a palindrome (356558855653).

The spelling of 234224433221 in words is "two hundred thirty-four billion, two hundred twenty-four million, four hundred thirty-three thousand, two hundred twenty-one".