234671221 has 4 divisors (see below), whose sum is σ = 234723744. Its totient is φ = 234618700.

The previous prime is 234671207. The next prime is 234671237. The reversal of 234671221 is 122176432.

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 234671221 - 2⁵ = 234671189 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 234671221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234671251) 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, 18865 + ... + 28726.

It is an arithmetic number, because the mean of its divisors is an integer number (58680936).

Almost surely, 2^234671221 is an apocalyptic number.

It is an amenable number.

234671221 is a deficient number, since it is larger than the sum of its proper divisors (52523).

234671221 is an equidigital number, since it uses as much as digits as its factorization.

234671221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52522.

The product of its digits is 4032, while the sum is 28.

The square root of 234671221 is about 15318.9823748185. The cubic root of 234671221 is about 616.8126581383.

The spelling of 234671221 in words is "two hundred thirty-four million, six hundred seventy-one thousand, two hundred twenty-one".