12746222 has 4 divisors (see below), whose sum is σ = 19119336. Its totient is φ = 6373110.

The previous prime is 12746219. The next prime is 12746231. The reversal of 12746222 is 22264721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 22264721 = 29 ⋅767749.

It is a junction number, because it is equal to n+sod(n) for n = 12746191 and 12746200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3186554 + ... + 3186557.

It is an arithmetic number, because the mean of its divisors is an integer number (4779834).

Almost surely, 2^12746222 is an apocalyptic number.

12746222 is a deficient number, since it is larger than the sum of its proper divisors (6373114).

12746222 is an equidigital number, since it uses as much as digits as its factorization.

12746222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6373113.

The product of its digits is 2688, while the sum is 26.

The square root of 12746222 is about 3570.1851492605. The cubic root of 12746222 is about 233.5933595527.

The spelling of 12746222 in words is "twelve million, seven hundred forty-six thousand, two hundred twenty-two".