12546222 has 24 divisors (see below), whose sum is σ = 27173304. Its totient is φ = 3860064.

The previous prime is 12546211. The next prime is 12546229. The reversal of 12546222 is 22264521.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12546192 and 12546201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12546229) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5173 + ... + 7200.

It is an arithmetic number, because the mean of its divisors is an integer number (1132221).

Almost surely, 2^12546222 is an apocalyptic number.

12546222 is an abundant number, since it is smaller than the sum of its proper divisors (14627082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12546222 is a wasteful number, since it uses less digits than its factorization.

12546222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12404 (or 12391 counting only the distinct ones).

The product of its digits is 1920, while the sum is 24.

The square root of 12546222 is about 3542.0646521485. The cubic root of 12546222 is about 232.3651478373.

The spelling of 12546222 in words is "twelve million, five hundred forty-six thousand, two hundred twenty-two".