4115221 has 4 divisors (see below), whose sum is σ = 4489344. Its totient is φ = 3741100.

The previous prime is 4115213. The next prime is 4115239. The reversal of 4115221 is 1225114.

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 not a de Polignac number, because 4115221 - 2³ = 4115213 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4115195 and 4115204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4115201) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187045 + ... + 187066.

It is an arithmetic number, because the mean of its divisors is an integer number (1122336).

Almost surely, 2^4115221 is an apocalyptic number.

It is an amenable number.

4115221 is a deficient number, since it is larger than the sum of its proper divisors (374123).

4115221 is a wasteful number, since it uses less digits than its factorization.

4115221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 374122.

The product of its digits is 80, while the sum is 16.

The square root of 4115221 is about 2028.6007492851. The cubic root of 4115221 is about 160.2498829750.

The spelling of 4115221 in words is "four million, one hundred fifteen thousand, two hundred twenty-one".