12228926 has 4 divisors (see below), whose sum is σ = 18343392. Its totient is φ = 6114462.

The previous prime is 12228917. The next prime is 12228929. The reversal of 12228926 is 62982221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 62982221 = 127 ⋅495923.

It is a super-2 number, since 2×12228926² = 299093262226952, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12228892 and 12228901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12228929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3057230 + ... + 3057233.

It is an arithmetic number, because the mean of its divisors is an integer number (4585848).

Almost surely, 2^12228926 is an apocalyptic number.

12228926 is a deficient number, since it is larger than the sum of its proper divisors (6114466).

12228926 is an equidigital number, since it uses as much as digits as its factorization.

12228926 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6114465.

The product of its digits is 6912, while the sum is 32.

The square root of 12228926 is about 3496.9881326650. The cubic root of 12228926 is about 230.3895477954.

The spelling of 12228926 in words is "twelve million, two hundred twenty-eight thousand, nine hundred twenty-six".