12214345 has 24 divisors (see below), whose sum is σ = 17361288. Its totient is φ = 8194560.

The previous prime is 12214339. The next prime is 12214361. The reversal of 12214345 is 54341221.

It can be written as a sum of positive squares in 4 ways, for example, as 131769 + 12082576 = 363^2 + 3476^2 .

It is not a de Polignac number, because 12214345 - 2¹¹ = 12212297 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7089 + ... + 8641.

It is an arithmetic number, because the mean of its divisors is an integer number (723387).

Almost surely, 2^12214345 is an apocalyptic number.

It is an amenable number.

12214345 is a deficient number, since it is larger than the sum of its proper divisors (5146943).

12214345 is a wasteful number, since it uses less digits than its factorization.

12214345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1593 (or 1582 counting only the distinct ones).

The product of its digits is 960, while the sum is 22.

The square root of 12214345 is about 3494.9027168149. The cubic root of 12214345 is about 230.2979440567.

Adding to 12214345 its reverse (54341221), we get a palindrome (66555566).

The spelling of 12214345 in words is "twelve million, two hundred fourteen thousand, three hundred forty-five".