12221095 has 4 divisors (see below), whose sum is σ = 14665320. Its totient is φ = 9776872.

The previous prime is 12221089. The next prime is 12221107. The reversal of 12221095 is 59012221.

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 12221095 - 2³ = 12221087 is a prime.

It is a congruent number.

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, 1222105 + ... + 1222114.

It is an arithmetic number, because the mean of its divisors is an integer number (3666330).

Almost surely, 2^12221095 is an apocalyptic number.

12221095 is a deficient number, since it is larger than the sum of its proper divisors (2444225).

12221095 is an equidigital number, since it uses as much as digits as its factorization.

12221095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2444224.

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

The square root of 12221095 is about 3495.8682755504. The cubic root of 12221095 is about 230.3403593439.

The spelling of 12221095 in words is "twelve million, two hundred twenty-one thousand, ninety-five".