122220443 has 4 divisors (see below), whose sum is σ = 122267928. Its totient is φ = 122172960.

The previous prime is 122220437. The next prime is 122220451. The reversal of 122220443 is 344022221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 344022221 = 31 ⋅11097491.

It is a cyclic number.

It is not a de Polignac number, because 122220443 - 2²⁴ = 105443227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122220493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19646 + ... + 25107.

It is an arithmetic number, because the mean of its divisors is an integer number (30566982).

Almost surely, 2^122220443 is an apocalyptic number.

122220443 is a deficient number, since it is larger than the sum of its proper divisors (47485).

122220443 is an equidigital number, since it uses as much as digits as its factorization.

122220443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47484.

The product of its (nonzero) digits is 768, while the sum is 20.

The square root of 122220443 is about 11055.3354992058. The cubic root of 122220443 is about 496.2661095342.

Adding to 122220443 its reverse (344022221), we get a palindrome (466242664).

The spelling of 122220443 in words is "one hundred twenty-two million, two hundred twenty thousand, four hundred forty-three".