422216512 has 14 divisors (see below), whose sum is σ = 837836018. Its totient is φ = 211108224.

The previous prime is 422216503. The next prime is 422216533. The reversal of 422216512 is 215612224.

It can be written as a sum of positive squares in only one way, i.e., 287099136 + 135117376 = 16944^2 + 11624^2 .

It is a super-2 number, since 2×422216512² = 356533566010892288, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3298503 + ... + 3298630.

Almost surely, 2^422216512 is an apocalyptic number.

It is an amenable number.

422216512 is a deficient number, since it is larger than the sum of its proper divisors (415619506).

422216512 is an equidigital number, since it uses as much as digits as its factorization.

422216512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6597145 (or 6597135 counting only the distinct ones).

The product of its digits is 1920, while the sum is 25.

The square root of 422216512 is about 20547.9077280389. The cubic root of 422216512 is about 750.2023228972.

Adding to 422216512 its reverse (215612224), we get a palindrome (637828736).

The spelling of 422216512 in words is "four hundred twenty-two million, two hundred sixteen thousand, five hundred twelve".