12223407 has 8 divisors (see below), whose sum is σ = 18626176. Its totient is φ = 6984792.

The previous prime is 12223399. The next prime is 12223411. The reversal of 12223407 is 70432221.

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

It is not a de Polignac number, because 12223407 - 2³ = 12223399 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 582067 = 12223407 / (1 + 2 + 2 + 2 + 3 + 4 + 0 + 7).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12223417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 291013 + ... + 291054.

It is an arithmetic number, because the mean of its divisors is an integer number (2328272).

Almost surely, 2^12223407 is an apocalyptic number.

12223407 is a deficient number, since it is larger than the sum of its proper divisors (6402769).

12223407 is an equidigital number, since it uses as much as digits as its factorization.

12223407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 582077.

The product of its (nonzero) digits is 672, while the sum is 21.

The square root of 12223407 is about 3496.1989359875. The cubic root of 12223407 is about 230.3548837743.

Adding to 12223407 its reverse (70432221), we get a palindrome (82655628).

The spelling of 12223407 in words is "twelve million, two hundred twenty-three thousand, four hundred seven".