422221250 has 40 divisors (see below), whose sum is σ = 863386128. Its totient is φ = 153530000.

The previous prime is 422221243. The next prime is 422221291. The reversal of 422221250 is 52122224.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1604 + ... + 29103.

Almost surely, 2^422221250 is an apocalyptic number.

422221250 is an abundant number, since it is smaller than the sum of its proper divisors (441164878).

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

422221250 is a wasteful number, since it uses less digits than its factorization.

422221250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30740 (or 30725 counting only the distinct ones).

The product of its (nonzero) digits is 640, while the sum is 20.

The square root of 422221250 is about 20548.0230192591. The cubic root of 422221250 is about 750.2051290762.

Adding to 422221250 its reverse (52122224), we get a palindrome (474343474).

The spelling of 422221250 in words is "four hundred twenty-two million, two hundred twenty-one thousand, two hundred fifty".