422220443 has 2 divisors, whose sum is σ = 422220444. Its totient is φ = 422220442.

The previous prime is 422220433. The next prime is 422220473. The reversal of 422220443 is 344022224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422220443 - 2⁴ = 422220427 is a prime.

It is a super-3 number, since 3×422220443³ (a number of 27 digits) contains 333 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (422220433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211110221 + 211110222.

It is an arithmetic number, because the mean of its divisors is an integer number (211110222).

Almost surely, 2^422220443 is an apocalyptic number.

422220443 is a deficient number, since it is larger than the sum of its proper divisors (1).

422220443 is an equidigital number, since it uses as much as digits as its factorization.

422220443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3072, while the sum is 23.

The square root of 422220443 is about 20548.0033823240. The cubic root of 422220443 is about 750.2046511151.

Adding to 422220443 its reverse (344022224), we get a palindrome (766242667).

The spelling of 422220443 in words is "four hundred twenty-two million, two hundred twenty thousand, four hundred forty-three".