422405251012 has 6 divisors (see below), whose sum is σ = 739209189278. Its totient is φ = 211202625504.

The previous prime is 422405251007. The next prime is 422405251013. The reversal of 422405251012 is 210152504224.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 213826707396 + 208578543616 = 462414^2 + 456704^2 .

It is not an unprimeable number, because it can be changed into a prime (422405251013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52800656373 + ... + 52800656380.

Almost surely, 2^422405251012 is an apocalyptic number.

It is an amenable number.

422405251012 is a deficient number, since it is larger than the sum of its proper divisors (316803938266).

422405251012 is a wasteful number, since it uses less digits than its factorization.

422405251012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105601312757 (or 105601312755 counting only the distinct ones).

The product of its (nonzero) digits is 6400, while the sum is 28.

Adding to 422405251012 its reverse (210152504224), we get a palindrome (632557755236).

The spelling of 422405251012 in words is "four hundred twenty-two billion, four hundred five million, two hundred fifty-one thousand, twelve".