422120712 has 64 divisors (see below), whose sum is σ = 1139544000. Its totient is φ = 129533184.

The previous prime is 422120683. The next prime is 422120717. The reversal of 422120712 is 217021224.

It is not an unprimeable number, because it can be changed into a prime (422120717) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 129114 + ... + 132342.

It is an arithmetic number, because the mean of its divisors is an integer number (17805375).

Almost surely, 2^422120712 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 422120712, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (569772000).

422120712 is an abundant number, since it is smaller than the sum of its proper divisors (717423288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

422120712 is a wasteful number, since it uses less digits than its factorization.

422120712 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3670 (or 3666 counting only the distinct ones).

The product of its (nonzero) digits is 448, while the sum is 21.

The square root of 422120712 is about 20545.5764582063. The cubic root of 422120712 is about 750.1455788517.

Adding to 422120712 its reverse (217021224), we get a palindrome (639141936).

The spelling of 422120712 in words is "four hundred twenty-two million, one hundred twenty thousand, seven hundred twelve".