12280226 has 32 divisors (see below), whose sum is σ = 21902592. Its totient is φ = 5054400.

The previous prime is 12280223. The next prime is 12280249. The reversal of 12280226 is 62208221.

12280226 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×12280226² = 301607901222152, which contains 22 as substring.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (12280223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78140 + ... + 78296.

It is an arithmetic number, because the mean of its divisors is an integer number (684456).

Almost surely, 2^12280226 is an apocalyptic number.

12280226 is a deficient number, since it is larger than the sum of its proper divisors (9622366).

12280226 is a wasteful number, since it uses less digits than its factorization.

12280226 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 354.

The product of its (nonzero) digits is 768, while the sum is 23.

The square root of 12280226 is about 3504.3153396919. The cubic root of 12280226 is about 230.7112575798.

Adding to 12280226 its reverse (62208221), we get a palindrome (74488447).

The spelling of 12280226 in words is "twelve million, two hundred eighty thousand, two hundred twenty-six".