422120071 has 2 divisors, whose sum is σ = 422120072. Its totient is φ = 422120070.

The previous prime is 422119993. The next prime is 422120089. The reversal of 422120071 is 170021224.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-422120071 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (422124071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211060035 + 211060036.

It is an arithmetic number, because the mean of its divisors is an integer number (211060036).

Almost surely, 2^422120071 is an apocalyptic number.

422120071 is a deficient number, since it is larger than the sum of its proper divisors (1).

422120071 is an equidigital number, since it uses as much as digits as its factorization.

422120071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 224, while the sum is 19.

The square root of 422120071 is about 20545.5608587354. The cubic root of 422120071 is about 750.1451991471.

Adding to 422120071 its reverse (170021224), we get a palindrome (592141295).

The spelling of 422120071 in words is "four hundred twenty-two million, one hundred twenty thousand, seventy-one".