422220511 has 4 divisors (see below), whose sum is σ = 422271432. Its totient is φ = 422169592.

The previous prime is 422220509. The next prime is 422220521. The reversal of 422220511 is 115022224.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 422220511 - 2¹ = 422220509 is a prime.

It is a super-2 number, since 2×422220511² = 356540319818202242, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422220521) 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, 9820 + ... + 30673.

It is an arithmetic number, because the mean of its divisors is an integer number (105567858).

Almost surely, 2^422220511 is an apocalyptic number.

422220511 is a deficient number, since it is larger than the sum of its proper divisors (50921).

422220511 is a wasteful number, since it uses less digits than its factorization.

422220511 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50920.

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 422220511 is about 20548.0050369860. The cubic root of 422220511 is about 750.2046913894.

Adding to 422220511 its reverse (115022224), we get a palindrome (537242735).

The spelling of 422220511 in words is "four hundred twenty-two million, two hundred twenty thousand, five hundred eleven".