422228771 has 2 divisors, whose sum is σ = 422228772. Its totient is φ = 422228770.

The previous prime is 422228761. The next prime is 422228789. The reversal of 422228771 is 177822224.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 422228771 - 2¹⁴ = 422212387 is a prime.

It is not a weakly prime, because it can be changed into another prime (422228731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211114385 + 211114386.

It is an arithmetic number, because the mean of its divisors is an integer number (211114386).

Almost surely, 2^422228771 is an apocalyptic number.

422228771 is a deficient number, since it is larger than the sum of its proper divisors (1).

422228771 is an equidigital number, since it uses as much as digits as its factorization.

422228771 is an evil number, because the sum of its binary digits is even.

The product of its digits is 25088, while the sum is 35.

The square root of 422228771 is about 20548.2060287510. The cubic root of 422228771 is about 750.2095835016.

The spelling of 422228771 in words is "four hundred twenty-two million, two hundred twenty-eight thousand, seven hundred seventy-one".