422021122 has 16 divisors (see below), whose sum is σ = 666761760. Its totient is φ = 199780992.

The previous prime is 422021113. The next prime is 422021129. The reversal of 422021122 is 221120224.

It is a junction number, because it is equal to n+sod(n) for n = 422021096 and 422021105.

It is not an unprimeable number, because it can be changed into a prime (422021129) 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, 96393 + ... + 100675.

It is an arithmetic number, because the mean of its divisors is an integer number (41672610).

Almost surely, 2^422021122 is an apocalyptic number.

422021122 is a deficient number, since it is larger than the sum of its proper divisors (244740638).

422021122 is a wasteful number, since it uses less digits than its factorization.

422021122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6897.

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 422021122 is about 20543.1526791776. The cubic root of 422021122 is about 750.0865808194.

Adding to 422021122 its reverse (221120224), we get a palindrome (643141346).

The spelling of 422021122 in words is "four hundred twenty-two million, twenty-one thousand, one hundred twenty-two".