121223226 has 32 divisors (see below), whose sum is σ = 260929728. Its totient is φ = 37405440.

The previous prime is 121223213. The next prime is 121223227. The reversal of 121223226 is 622322121.

It is a nude number because it is divisible by every one of its digits.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (121223227) 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, 3520 + ... + 15963.

It is an arithmetic number, because the mean of its divisors is an integer number (8154054).

Almost surely, 2^121223226 is an apocalyptic number.

121223226 is an abundant number, since it is smaller than the sum of its proper divisors (139706502).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121223226 is a wasteful number, since it uses less digits than its factorization.

121223226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19566.

The product of its digits is 576, while the sum is 21.

The square root of 121223226 is about 11010.1419609377. The cubic root of 121223226 is about 494.9127159639.

Adding to 121223226 its reverse (622322121), we get a palindrome (743545347).

The spelling of 121223226 in words is "one hundred twenty-one million, two hundred twenty-three thousand, two hundred twenty-six".