12095221 has 4 divisors (see below), whose sum is σ = 12220012. Its totient is φ = 11970432.

The previous prime is 12095203. The next prime is 12095227. The reversal of 12095221 is 12259021.

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 3944196 + 8151025 = 1986^2 + 2855^2 .

It is a cyclic number.

It is not a de Polignac number, because 12095221 - 2¹⁷ = 11964149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12095192 and 12095201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12095227) 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, 62250 + ... + 62443.

It is an arithmetic number, because the mean of its divisors is an integer number (3055003).

Almost surely, 2^12095221 is an apocalyptic number.

It is an amenable number.

12095221 is a deficient number, since it is larger than the sum of its proper divisors (124791).

12095221 is an equidigital number, since it uses as much as digits as its factorization.

12095221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124790.

The product of its (nonzero) digits is 360, while the sum is 22.

The square root of 12095221 is about 3477.8184253926. The cubic root of 12095221 is about 229.5468140048.

The spelling of 12095221 in words is "twelve million, ninety-five thousand, two hundred twenty-one".