12225439846 has 8 divisors (see below), whose sum is σ = 18373224744. Its totient is φ = 6101031600.

The previous prime is 12225439747. The next prime is 12225439847. The reversal of 12225439846 is 64893452221.

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

It is a super-2 number, since 2×12225439846² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12225439796 and 12225439805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12225439847) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5842855 + ... + 5844946.

It is an arithmetic number, because the mean of its divisors is an integer number (2296653093).

Almost surely, 2^12225439846 is an apocalyptic number.

12225439846 is a deficient number, since it is larger than the sum of its proper divisors (6147784898).

12225439846 is a wasteful number, since it uses less digits than its factorization.

12225439846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11688326.

The product of its digits is 829440, while the sum is 46.

The spelling of 12225439846 in words is "twelve billion, two hundred twenty-five million, four hundred thirty-nine thousand, eight hundred forty-six".