12212845 has 8 divisors (see below), whose sum is σ = 14674176. Its totient is φ = 9757776.

The previous prime is 12212833. The next prime is 12212861. The reversal of 12212845 is 54821221.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12212845 is a prime.

It is a Duffinian number.

It is a congruent number.

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, 6924 + ... + 8506.

It is an arithmetic number, because the mean of its divisors is an integer number (1834272).

Almost surely, 2^12212845 is an apocalyptic number.

It is an amenable number.

12212845 is a deficient number, since it is larger than the sum of its proper divisors (2461331).

12212845 is a wasteful number, since it uses less digits than its factorization.

12212845 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3131.

The product of its digits is 1280, while the sum is 25.

The square root of 12212845 is about 3494.6881119779. The cubic root of 12212845 is about 230.2885163153.

The spelling of 12212845 in words is "twelve million, two hundred twelve thousand, eight hundred forty-five".