43121222 has 8 divisors (see below), whose sum is σ = 68086200. Its totient is φ = 20425824.

The previous prime is 43121209. The next prime is 43121227. The reversal of 43121222 is 22212134.

43121222 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 43121222.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (43121227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 567347 + ... + 567422.

It is an arithmetic number, because the mean of its divisors is an integer number (8510775).

Almost surely, 2^43121222 is an apocalyptic number.

43121222 is a deficient number, since it is larger than the sum of its proper divisors (24964978).

43121222 is a wasteful number, since it uses less digits than its factorization.

43121222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1134790.

The product of its digits is 192, while the sum is 17.

The square root of 43121222 is about 6566.6751099777. The cubic root of 43121222 is about 350.6687133728.

Adding to 43121222 its reverse (22212134), we get a palindrome (65333356).

The spelling of 43121222 in words is "forty-three million, one hundred twenty-one thousand, two hundred twenty-two".