422120200 has 48 divisors (see below), whose sum is σ = 1039168980. Its totient is φ = 158914560.

The previous prime is 422120189. The next prime is 422120203. The reversal of 422120200 is 2021224.

It can be written as a sum of positive squares in 6 ways, for example, as 122899396 + 299220804 = 11086^2 + 17298^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422120203) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58677 + ... + 65476.

Almost surely, 2^422120200 is an apocalyptic number.

422120200 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

422120200 is an abundant number, since it is smaller than the sum of its proper divisors (617048780).

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

422120200 is a wasteful number, since it uses less digits than its factorization.

422120200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 124186 (or 124177 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 422120200 is about 20545.5639980994. The cubic root of 422120200 is about 750.1452755619.

Adding to 422120200 its reverse (2021224), we get a palindrome (424141424).

The spelling of 422120200 in words is "four hundred twenty-two million, one hundred twenty thousand, two hundred".