12221795 has 4 divisors (see below), whose sum is σ = 14666160. Its totient is φ = 9777432.

The previous prime is 12221771. The next prime is 12221801. The reversal of 12221795 is 59712221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12221795 - 2¹⁰ = 12220771 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1222175 + ... + 1222184.

It is an arithmetic number, because the mean of its divisors is an integer number (3666540).

Almost surely, 2^12221795 is an apocalyptic number.

12221795 is a deficient number, since it is larger than the sum of its proper divisors (2444365).

12221795 is an equidigital number, since it uses as much as digits as its factorization.

12221795 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444364.

The product of its digits is 2520, while the sum is 29.

The square root of 12221795 is about 3495.9683923056. The cubic root of 12221795 is about 230.3447570724.

The spelling of 12221795 in words is "twelve million, two hundred twenty-one thousand, seven hundred ninety-five".