420122212 has 12 divisors (see below), whose sum is σ = 752312176. Its totient is φ = 205175880.

The previous prime is 420122201. The next prime is 420122221. The reversal of 420122212 is 212221024.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1221114 + ... + 1221457.

Almost surely, 2^420122212 is an apocalyptic number.

It is an amenable number.

420122212 is a deficient number, since it is larger than the sum of its proper divisors (332189964).

420122212 is a wasteful number, since it uses less digits than its factorization.

420122212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2442618 (or 2442616 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 16.

The square root of 420122212 is about 20496.8829825415. The cubic root of 420122212 is about 748.9598689849.

Adding to 420122212 its reverse (212221024), we get a palindrome (632343236).

The spelling of 420122212 in words is "four hundred twenty million, one hundred twenty-two thousand, two hundred twelve".