1212226 has 4 divisors (see below), whose sum is σ = 1818342. Its totient is φ = 606112.

The previous prime is 1212221. The next prime is 1212227. The reversal of 1212226 is 6222121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6222121 = 23 ⋅270527.

It can be written as a sum of positive squares in only one way, i.e., 1212201 + 25 = 1101^2 + 5^2 .

It is not an unprimeable number, because it can be changed into a prime (1212221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 303055 + ... + 303058.

2^1212226 is an apocalyptic number.

1212226 is a deficient number, since it is larger than the sum of its proper divisors (606116).

1212226 is an equidigital number, since it uses as much as digits as its factorization.

1212226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 606115.

The product of its digits is 96, while the sum is 16.

The square root of 1212226 is about 1101.0113532566. The cubic root of 1212226 is about 106.6255288414.

Adding to 1212226 its reverse (6222121), we get a palindrome (7434347).

The spelling of 1212226 in words is "one million, two hundred twelve thousand, two hundred twenty-six".