2212305 has 8 divisors (see below), whose sum is σ = 3539712. Its totient is φ = 1179888.

The previous prime is 2212297. The next prime is 2212321. The reversal of 2212305 is 5032122.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2212305 - 2³ = 2212297 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (15), and also a Moran number because the ratio is a prime number: 147487 = 2212305 / (2 + 2 + 1 + 2 + 3 + 0 + 5).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73729 + ... + 73758.

It is an arithmetic number, because the mean of its divisors is an integer number (442464).

2^2212305 is an apocalyptic number.

It is an amenable number.

2212305 is a deficient number, since it is larger than the sum of its proper divisors (1327407).

2212305 is a wasteful number, since it uses less digits than its factorization.

2212305 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147495.

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 2212305 is about 1487.3819280871. The cubic root of 2212305 is about 130.3011754848.

Adding to 2212305 its reverse (5032122), we get a palindrome (7244427).

The spelling of 2212305 in words is "two million, two hundred twelve thousand, three hundred five".