422220422 has 16 divisors (see below), whose sum is σ = 686139552. Its totient is φ = 193702080.

The previous prime is 422220401. The next prime is 422220427. The reversal of 422220422 is 224022224.

It is a junction number, because it is equal to n+sod(n) for n = 422220394 and 422220403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422220427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44279 + ... + 52962.

It is an arithmetic number, because the mean of its divisors is an integer number (42883722).

Almost surely, 2^422220422 is an apocalyptic number.

422220422 is a deficient number, since it is larger than the sum of its proper divisors (263919130).

422220422 is a wasteful number, since it uses less digits than its factorization.

422220422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97423.

The product of its (nonzero) digits is 1024, while the sum is 20.

The square root of 422220422 is about 20548.0028713255. The cubic root of 422220422 is about 750.2046386775.

Adding to 422220422 its reverse (224022224), we get a palindrome (646242646).

The spelling of 422220422 in words is "four hundred twenty-two million, two hundred twenty thousand, four hundred twenty-two".