422251012 has 6 divisors (see below), whose sum is σ = 738939278. Its totient is φ = 211125504.

The previous prime is 422251009. The next prime is 422251019. The reversal of 422251012 is 210152224.

It can be written as a sum of positive squares in only one way, i.e., 422138116 + 112896 = 20546^2 + 336^2 .

It is not an unprimeable number, because it can be changed into a prime (422251019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 52781373 + ... + 52781380.

Almost surely, 2^422251012 is an apocalyptic number.

It is an amenable number.

422251012 is a deficient number, since it is larger than the sum of its proper divisors (316688266).

422251012 is a wasteful number, since it uses less digits than its factorization.

422251012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105562757 (or 105562755 counting only the distinct ones).

The product of its (nonzero) digits is 320, while the sum is 19.

The square root of 422251012 is about 20548.7472124215. The cubic root of 422251012 is about 750.2227557592. Note that the first 3 decimals are identical.

The spelling of 422251012 in words is "four hundred twenty-two million, two hundred fifty-one thousand, twelve".