122220213226 has 8 divisors (see below), whose sum is σ = 183351474180. Its totient is φ = 61103055168.

The previous prime is 122220213223. The next prime is 122220213239. The reversal of 122220213226 is 622312022221.

It can be written as a sum of positive squares in 2 ways, for example, as 93056112601 + 29164100625 = 305051^2 + 170775^2 .

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 122220213226.

It is not an unprimeable number, because it can be changed into a prime (122220213223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504031 + ... + 3538738.

Almost surely, 2^122220213226 is an apocalyptic number.

122220213226 is a deficient number, since it is larger than the sum of its proper divisors (61131260954).

122220213226 is an equidigital number, since it uses as much as digits as its factorization.

122220213226 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7051448.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 122220213226 its reverse (622312022221), we get a palindrome (744532235447).

The spelling of 122220213226 in words is "one hundred twenty-two billion, two hundred twenty million, two hundred thirteen thousand, two hundred twenty-six".