12548222 has 4 divisors (see below), whose sum is σ = 18822336. Its totient is φ = 6274110.

The previous prime is 12548219. The next prime is 12548231. The reversal of 12548222 is 22284521.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22284521 = 7 ⋅3183503.

It is a super-2 number, since 2×12548222² = 314915750722568, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12548191 and 12548200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3137054 + ... + 3137057.

It is an arithmetic number, because the mean of its divisors is an integer number (4705584).

Almost surely, 2^12548222 is an apocalyptic number.

12548222 is a deficient number, since it is larger than the sum of its proper divisors (6274114).

12548222 is an equidigital number, since it uses as much as digits as its factorization.

12548222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6274113.

The product of its digits is 2560, while the sum is 26.

The square root of 12548222 is about 3542.3469621142. The cubic root of 12548222 is about 232.3774943324.

The spelling of 12548222 in words is "twelve million, five hundred forty-eight thousand, two hundred twenty-two".