34118221 has 4 divisors (see below), whose sum is σ = 34911712. Its totient is φ = 33324732.

The previous prime is 34118219. The next prime is 34118257. The reversal of 34118221 is 12281143.

It is a happy number.

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 34118221 - 2¹ = 34118219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 34118192 and 34118201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34110221) 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, 396681 + ... + 396766.

It is an arithmetic number, because the mean of its divisors is an integer number (8727928).

Almost surely, 2^34118221 is an apocalyptic number.

It is an amenable number.

34118221 is a deficient number, since it is larger than the sum of its proper divisors (793491).

34118221 is an equidigital number, since it uses as much as digits as its factorization.

34118221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793490.

The product of its digits is 384, while the sum is 22.

The square root of 34118221 is about 5841.0804651194. The cubic root of 34118221 is about 324.3362263095.

Adding to 34118221 its reverse (12281143), we get a palindrome (46399364).

The spelling of 34118221 in words is "thirty-four million, one hundred eighteen thousand, two hundred twenty-one".