422219911 has 2 divisors, whose sum is σ = 422219912. Its totient is φ = 422219910.

The previous prime is 422219909. The next prime is 422219923. The reversal of 422219911 is 119912224.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422219911 - 2¹ = 422219909 is a prime.

Together with 422219909, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422249911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211109955 + 211109956.

It is an arithmetic number, because the mean of its divisors is an integer number (211109956).

Almost surely, 2^422219911 is an apocalyptic number.

422219911 is a deficient number, since it is larger than the sum of its proper divisors (1).

422219911 is an equidigital number, since it uses as much as digits as its factorization.

422219911 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2592, while the sum is 31.

The square root of 422219911 is about 20547.9904370233. The cubic root of 422219911 is about 750.2043360277.

The spelling of 422219911 in words is "four hundred twenty-two million, two hundred nineteen thousand, nine hundred eleven".